Why bother trimming skins when you can get Pomoca-quality Speedskins precut for Dynafit skis? The climbing skins include a patented clamp system designed to work effortlessly on non-race model (i.e. other than Dy.N.A. and PDG) skis. Designed to be ripped off from the tip of the ski, the Speedskins include an easy-to-grab rubber stick that fits perfectly in Dynafit tip notches. The simple tail clips clasp securely on the flat tail notches found on all Dynafit skis.