Features: These circlips can be snapped into a machined groove on a dowel pin or other part to permit rotation but to prevent lateral movement. Made of high quality metal, these circlips are durable and wearable. There are total 6 different sizes of circlips that you can use for different purposes and projects. This set includes 100 pieces circlips so you do not have to worry about running out of circlips for quite a while. All circlips are well packed and assorted in a resealable plastic box for convenient carry and storage. Specifications: Material: A3 steel Qty & Size: 20pcs*11mm 20pcs*12mm 15pcs*14mm 15pcs*15mm 15pcs*19mm 15pcs*21mm Weight: 131g(approx.) Package Includes: 100pcs * Circlips .