Plastic Gears, Pulleys, and Wheel Pack [78 Pieces]

Description:
Each package contains spindle, single, double, crown gear, pulley, rack, bevel gear, copper gear, bushings, axles, tires, rubber bands, tee, worm, sector gear, etc.
In addition to an 81.5A spindle hole is 1.5mm, there are 2 crown is 2.5mm, there is a crown gear C303A is 3mm, a 15 teeth 2.3mm hole and 3.17mm hole. Another gear hole diameter is 2mm(tight or loose)
Come with 78 pcs gears(68 kinds).
They are essential and necessary parts for models, aircraft, automobiles, boats, robots and other small production of science and technology.
They are Small, comprehensive and easy to use, have and a good replacement for old or broken parts.

Features:
Material: Plastic

Package Include:
1 x 78 Kinds of Gear