158PCS Black rubber caps made of rubber material, very flexible and elastic. The protector caps set contains 12 sizes , multiple size combination can satisfy your Various usage needs. Rubber end caps package comes with a plastic box, you can store your rubber bolt caps and prevent your caps from leaking and losing easily. Rubber protector cover easy to use, which can be reused for a long time, you can also trim it into proper length according to your own need. Rubber cap is used for metal chair tips, furniture, chair legs, table legs or tips, threads, nail heads, or covering any round tube to prevent wear; decorate homes, offices and other places to make them look more beautiful.