1、The set includes multiple kinds of gear to meet your different needs. 2、It is mainly used in assembling small toy car model,in order to finish a car model,you need to consider the needed parts and accessories. 3、The set is made of premium plastic material,durable and has long service life. 4、100% brand new and high-quality. 5、It is stable and has great performance while using. Features: The set includes multiple kinds of gear to meet your different needs. It is mainly used in assembling small toy car model,in order to finish a car model,you need to consider the needed parts and accessories. The set is made of premium plastic material,durable and has long service life. 100% brand new and high-quality. It is stable and has great performance while using. Specification: Type:(A represents tight;B represents loose) Single Gear:82A 102A(Three Types:White Yellow Blue) 122A 142A 162A 182A 202A Crown Gear:C282A C20082A  C30102B  C24102B Single Gear:1202A 902A 303A 183A 482A 422.5A 562A 242A 302A 302.5A 322A Double Gear:32082B 26082B 24102B 30162A 46082A 20102B 22082A Belt Pulley:62A  5.82A  9.32A  182A  16.82A  Red242AB Green302A Worm, Bushing, Rack:W6*72A , W6*102A, Three-way Bushing, Racks (2pcs) Rubber Band (four models):Black (2), Blue (2), Red (2) Transparent (2) Package List: 51*Plastic Parts and Accessories