These circlips can be snapped into a machined groove on a pin or other part to allow rotation but to prevent lateral movement2. Two basic types of internal and external can fit in a bore or on a shaft3. There are total 18 different sizes of circlips that you can use for different purposes and projects4. This set includes 225 circlips so you don't have to worry about running out of circlips for a while. All circlips are well packed and assorted in a resealable plastic box for convenient transportation and storage. Specification: Features:These circlips can be snapped into a machined groove on a pin or other part to allow rotation but to prevent lateral movement.Two basic types of internal and external can fit into a bore or onto a shaft.There are in total 18 different sizes of circlips that you can use for different purposes and projects. This set includes 225 circlips so you don't have to worry about running out of circlips for a while. resealable plastic box for convenient transport and storage.Specifications:Material: MetalQuantity Size15pcs 1115pcs 1615pcs 1315pcs 1415pcs 1615pcs 1910pcs 1210pcs 195pcs 3210pcs 2510pcs 2210pcs 2010pcs 1410pcs 2015pcs 1115pcs 915pcs 815pcs 6Package includes: 1 box * circlips