The Tour-Grade Peg Winder offers next level performance for luthiers, techs or anyone who wants to change strings with maximum speed and ease. The multi-tool design brings together a ball bearing, non-marring socket for smoother winding, molded grips, and a spring-loaded bridge pin puller. Premium string winder Molded gripped handle with ball bearing socket Integrated spring-loaded bridge pin puller Works on virtually all guitars, banjos, ukuleles, and mandolins. Fits in most cases