Internal circlips are a type of retaining ring that is used to secure components installed inside a bore or hole. They expand outward, creating a shoulder that prevents a component from sliding out. . They are installed in a groove cut into the inside of a hole and exert a radial force to hold the component in place. Internal circlips are commonly used in applications where components need to be easily removed or replaced, such as in machinery, automotive parts, and industrial equipment. These Assortment Kits provides multiple sizes of product in a convenient utility box.