Makes changing tires a snap. The shape and surface of the tire lever makes the assembly and disassembly of a tire more enjoyable. For both tires and hands too! The tire levers are especially helpful in difficult assembly operations. Clip it onto the rim, to fix the already mounted section of the tire, and it won't slide out when the last section is levered onto the rim. The high-quality plastic is almost unbreakable. Set contains 3 tire levers.