Topeak Power Lever X Tool – 5 Function. An ingenious master link tire lever tool! Two levers connect to form heavy-duty pliers for removing or installing all types of chain master links. An integrated chain hook keeps chain from separating while removing or installing master links. One complete master link stores within a compartment. Tool separates for use as two tire levers for quick flat repairs and also features a Presta core tool for removing valve cores.