75 single-layer gears with different types of single-layer gears, all standard and common. The gears are all 0.5-modulus plastic gears, and are single-layer circular gears, generally used on axles, with a variety of different apertures.
[product material]: POM plastic (very wearable)
[Scope of use]: Transmission hook for various DIY hand-made products
[Gear Modulus]: The modulus is 0.5, all can be used together.
SPIndle straight tooth : 9 kinds (each one)
Crown gear: 11 kinds (each one)
Single gear: 12 kinds (each one)
Double gear: 19 kinds (each one)
Worm: 2 kinds (each one)
Connecting rack: 2x
Axle sleeve: 6x
Tee collar: 1x