This set contains 2 clamping jaws for flat clamping and 2 clamping jaws with V-groove for securely holding round workpieces, such as pipes. The shaft of the clamping jaws is compatible with all tables with a 20 mm hole pattern, such as the tables in the wolfcraft MASTER series. The ideal addition that allows you to expand your clamping options enormously. The robust plastic design "Made in Europe" makes the clamping jaws long-lasting companions in your everyday work.