What is it?

• Bag of 81 kinds of plastic gears. DIY technology, model production, Gear racks, Deceleration, 0.5 Modulus

Why did you make it?

• For Little toy DIY

What makes it special?

• 81 kinds of plastic gear package, in this gear package includes a variety of different numbers of teeth of the gear, rack, gear modulus all 0.5 modulus, can freely mix, which contains seven kinds of models pulley.
• 81 kinds of species, without duplication, which includes standard gear, fan gear, rack, worm, pulleys, belts
• Modulus [0.5], all of which may be used with aperture 0.8,1,1.9,2.05,2.55,3 etc.
• Material: POM plastic