Features:

  • The Gear Package included: spindle, single/double crown gear, pulley, rack, bevel gear, copper gear, bushings, axles, tires, rubber bands and so on, more accessories that you need for diy toy cars/robots/motors.
  • Axle length of 30mm, 50mm, 70mm, 100mm, shaft diameter is 2mm, 2pcs / kind, for a total of 8 Pcs
  • Five wheel wheels: outer diameter 30mm, inner hole 2mm，for a total of 4 Pcs
  • The characteristics of gear: 36MM yellow 2mm hole belt wheel, rack, four-wheel drive, 28 tooth 2mm hole Fan teeth and 30-100mm gear axle, five wheel wheel diameter 30mm!Multi-uses, you can use it to fix the toys,Great for diy science and small production, product design and mechanical model.
  • Most gear is 2mm aperture (tight or loose), in addition to one 81.5A spindle hole is 1.5mm, there are 2 crown is 2.5mm, there are 1 crown gear C303A is 3mm, one 15 teeth 2.3mm hole and 3.17mm hole.
Good set

Nice set of package. We made a mini airboat made of old rubber slippers and it did whats meant for.

Great for kids to experiment with!

My granddaughter had the assignment of making something with a simple machine. I bought this pack and we played around with ideas for putting them to use. GREAT tool for just letting kids experiment. I would buy again, no question.

Great product

Worked well to explain gears to middle school boys.

Decent set

Was looking for wheels for a robotic project/control systems. They were smaller than I wanted but the price was better than products with sets of two wheels without the gears. All gears mesh perfectly and there is the added bonus with the two pieces meant for fitting gears onto the metal rods!

Exactly as described.

Exactly what I was looking for. Everything fits correctly, and nothing seems to be warped or broken.

Very inexpensive.

Great price for all the best projects you need.

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