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All Accessories in one package - this package included spindle, single/double crown gear, pulley, rack, bevel gear, copper gear, bushings, axles, tires, rubber bands and more accessories that you need for DIY toy cars/Robots/Motors
Multi-uses, you can use it to fix the toys, also the great and fun gifts for kids
0.5 Modulus，71 kinds of gear parts, totaling 78 pieces, great assortment
Great for DIY science and small production, product design and mechanical model
Axle： 8pcs 30mm x 2pcs 50mm x 2pcs 70mmx 2pcs 100mm x2pcs
Wheel: 4pcs outer diameter 30mm, bore 2mm
Yellow Gearwheel: 36mm
Crown gear: 2.5mm x 2, 3mm (C303A) x 1
Axle length of 30mm, 50mm, 70mm, 100mm, shaft diameter is 2mm, the two
Five wheel wheels: 4 outer diameter 30mm, bore 2mm
Gears are mostly 2mm aperture (tight or loose), in addition to a 81.5A spindle hole is 1.5mm, there are two crown is 2.5mm, there is a crown gear C303A is 3mm, a 15 teeth 2.3mm hole and 3.17mm hole
Package included: 78 pieces Gear Parts
Lanyani 78pcs Plastic Gear Kit DIY Gear Assortment set for Toy Motor Car Robot Various Gear Axle Belt Bushings - B071Z6B3TF