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Stem toys

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Stem toys for sale on largest auction and classifieds sites

Home / Building Toys / Stem toys refurbished & used for sale | For Sale USA
150pcs magnetic building - magnetic,

150pcs magnetic building - magnetic,

$18.99
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Solar robot kit - robot,

Solar robot kit - robot,

$19.99
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Set stem science kits - stem,

Set stem science kits - stem,

$25.54
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100 piece magnetic building - 100,

100 piece magnetic building - 100,

$49.99
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Magnetic building blocks for - blocks,

Magnetic building blocks for - blocks,

$12.81
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Giiker super blocks - giiker,

Giiker super blocks - giiker,

$30.00
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Solar robot kit - 6-in-1,

Solar robot kit - 6-in-1,

$19.97
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Magnetic tiles for - magnetic, age

Magnetic tiles for - magnetic, age

$13.87
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Stem toys for - for, ages

Stem toys for - for, ages

$14.76
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150pcs magnetic building - magnetic,

150pcs magnetic building - magnetic,

$20.99
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Beandge stem kits for kids - stem,

Beandge stem kits for kids - stem,

$12.99
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Diy solar robot - diy,

Diy solar robot - diy,

$25.00
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Stem building toys for - stem, 9

Stem building toys for - stem, 9

$51.98
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Stem toys for 6 7 - in, 1

Stem toys for 6 7 - in, 1

$62.99
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Stem toys for age 13 - stem,

Stem toys for age 13 - stem,

$22.00
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Stem kits for kids - stem,

Stem kits for kids - stem,

$21.20
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168 pcs marble - marble, building

168 pcs marble - marble, building

$10.15
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Stem solar robot kit - kit,

Stem solar robot kit - kit,

$22.98
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200pcs stem building blocks - 200pcs,

200pcs stem building blocks - 200pcs,

$6.98
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Science can circuit - science, for

Science can circuit - science, for

$50.05
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Stem science kits pack - kits, 4

Stem science kits pack - kits, 4

$11.99
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Magnetic building blocks for - magnetic,

Magnetic building blocks for - magnetic,

$27.11
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Stem toys pixel art - kit, for

Stem toys pixel art - kit, for

$15.71
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Beandge electric circuit kit - beandge,

Beandge electric circuit kit - beandge,

$16.63
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Stem solar robot - stem, kit

Stem solar robot - stem, kit

$26.99
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Magnetic blocks stem - magnetic,

Magnetic blocks stem - magnetic,

$14.45
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168 pcs marble run - 168, building

168 pcs marble run - 168, building

$12.59
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Magnetic tiles for kids age - magnetic,

Magnetic tiles for kids age - magnetic,

$15.99
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Stem building toys 180 pcs - stem,

Stem building toys 180 pcs - stem,

$29.95
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Solar robot kit diy - robot,

Solar robot kit diy - robot,

$9.99
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Robot building kit - with, remote

Robot building kit - with, remote

$59.99
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88pcs stem building - stem,

88pcs stem building - stem,

$41.30
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Kids marble run 105pcs railway - run,

Kids marble run 105pcs railway - run,

$20.69
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Magnetic building blocks diy - magnetic,

Magnetic building blocks diy - magnetic,

$24.99
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155 experiments science - 155, kits

155 experiments science - 155, kits

$24.99
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Magnetic train set for kids - set,

Magnetic train set for kids - set,

$28.32
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Dinosaur race track magnetic - race,

Dinosaur race track magnetic - race,

$25.95
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Kids fort building - building, kit

Kids fort building - building, kit

$64.96
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Powered stem building toys - powered,

Powered stem building toys - powered,

$144.74
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Vex robotics kit - robotics, new

Vex robotics kit - robotics, new

$35.00
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Robotic mechanical hand - mechanical, stem

Robotic mechanical hand - mechanical, stem

$24.99
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Science kits for kids - kits,

Science kits for kids - kits,

$22.79
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Kids stem diy science - stem,

Kids stem diy science - stem,

$13.99
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Lot pieces of picasso - of,

Lot pieces of picasso - of,

$45.00
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Stem toys for ages - toys, 6-8-13

Stem toys for ages - toys, 6-8-13

$11.33
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Solar robot building - 12-in-1,

Solar robot building - 12-in-1,

$26.99
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New sealed apitor superbot - apitor,

New sealed apitor superbot - apitor,

$22.99
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Magna tiles set - magna-tiles, 91pcs

Magna tiles set - magna-tiles, 91pcs

$23.99
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Stem mechanical piranha - stem,

Stem mechanical piranha - stem,

$85.99
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Educational insights artie - insights,

Educational insights artie - insights,

$18.00
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Magnetic tiles toddler toys - magnetic,

Magnetic tiles toddler toys - magnetic,

$40.34
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Solar robot kit - solar, diy

Solar robot kit - solar, diy

$8.99
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Stem projects science toys - stem,

Stem projects science toys - stem,

$21.82
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Magnetic blocks 32pcs - magnetic,

Magnetic blocks 32pcs - magnetic,

$27.16
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Stem construction kit - 12-in-1,

Stem construction kit - 12-in-1,

$29.95
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Stem science kits for kids - science,

Stem science kits for kids - science,

$20.00
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Smartivity mechanical hand - smartivity,

Smartivity mechanical hand - smartivity,

$22.49
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Magnetic tiles for kids age - tiles,

Magnetic tiles for kids age - tiles,

$20.19
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Stem radio kit - radio, kids

Stem radio kit - radio, kids

$11.83
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Diy electric elevator model - elevator,

Diy electric elevator model - elevator,

$8.99
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Girls stem engineering - kit, new

Girls stem engineering - kit, new

$11.50
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Magna tiles clear colors - tiles,

Magna tiles clear colors - tiles,

$36.04
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Magnetic blocks set stem - set,

Magnetic blocks set stem - set,

$15.96
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Wooden blocks toy - wooden, 100

Wooden blocks toy - wooden, 100

$23.99
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Stem space vehicle - stem, 1

Stem space vehicle - stem, 1

$44.99
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Magnetic blocks set - magnetic,

Magnetic blocks set - magnetic,

$12.97
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Learning resources stem - learning,

Learning resources stem - learning,

$25.00
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Robot mech building blocks - building,

Robot mech building blocks - building,

$21.99
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Magnetic building block set - building,

Magnetic building block set - building,

$3.99
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Interstar preschool building - interstar,

Interstar preschool building - interstar,

$12.00
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150pcs magnetic building - 150pcs,

150pcs magnetic building - 150pcs,

$15.25
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Zipline action figure stem - zipline,

Zipline action figure stem - zipline,

$15.00
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236pcs glowing marble - glowing, run

236pcs glowing marble - glowing, run

$39.81
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Physics educational stem - physics,

Physics educational stem - physics,

$29.99
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Rc programmable robot - 5-in-1,

Rc programmable robot - 5-in-1,

$49.99
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Magnetic tiles for - for, kids

Magnetic tiles for - for, kids

$14.27
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Stem coding robotic building - robotic,

Stem coding robotic building - robotic,

$47.99
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Diy stem metal construction - diy,

Diy stem metal construction - diy,

$12.50
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Contixo st5 stem - st5,

Contixo st5 stem - st5,

$29.99
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Stem robotics kit - stem,

Stem robotics kit - stem,

$39.99
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Marble run set - set, pcs

Marble run set - set, pcs

$28.99
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Stem robotics kit set - stem,

Stem robotics kit set - stem,

$19.99
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Eva sticky blocks colors - eva,

Eva sticky blocks colors - eva,

$16.15
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Neoact 600 pcs - pcs, building

Neoact 600 pcs - pcs, building

$30.48
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Fidget stem toys sticky - toys, squash

Fidget stem toys sticky - toys, squash

$15.99
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Tytan magnetic tiles 220 - 220, piece

Tytan magnetic tiles 220 - 220, piece

$38.95
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Uimoso magnetic tiles marble - uimoso,

Uimoso magnetic tiles marble - uimoso,

$20.99
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Science magnet kits for kids - science,

Science magnet kits for kids - science,

$22.67
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Lakeshore stem water - , play

Lakeshore stem water - , play

$25.00
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112 pcs motorized - 112, erector

112 pcs motorized - 112, erector

$45.99
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4pcs lighting magnetic blocks - lighting,

4pcs lighting magnetic blocks - lighting,

$15.72
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150pcs magnetic building - 150pcs,

150pcs magnetic building - 150pcs,

$30.99
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True balance handheld - true,

True balance handheld - true,

$16.95
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Smartmax magnetic discovery - smartmax,

Smartmax magnetic discovery - smartmax,

$30.00
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107pcs motorized erector sets - erector,

107pcs motorized erector sets - erector,

$73.88
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Stem robot building - robot,

Stem robot building - robot,

$96.86
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📊96 listings · from $3.99 · avg $28.19
⚠️ These listings were last updated more than 16 days ago. Search for fresh listings

Browse 96 stem toys listings currently in our index. Prices range from $3.99 to $144.74, with an average of $28.19. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about stem toys →

Shop by budget

< $25 $25 – $50 $50 – $100 $100 – $200 $200 – $500 > $500

Everything you need to know about stem toys

Whether you are looking for a brand-new or second-hand stem toys, eBay offers one of the largest selections available online. With 96 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at $3.99, while premium listings can reach $144.74 — giving you a wide budget spread to work with. The average price of $28.19 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.

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