Model:75 Kinds
1.Spindle Straight Gear:nine kinds
2.Crown Gear:11 kinds
3.Single Layer Gear:12 kinds
4.Double Layer Gear:19 kinds
5.Connection Rack: 2 pcs
6.Belt Pulley:7 kinds
7.Worm: 2 kinds
8.Shafe Sleeve:6 pcs
9.Three-Means Shaft Sleeve:1pcs
10.Bevel Bevel Gear:1 pcs
11.Belt:five Types
Subject matter:Plastic
Amount: 1package
Model: 75 Types
Color: As shown
It;s just right to DIY design, Leisure pursuits and so forth.