Patented innovation: Every WOLF winder counts the precise number of rotations. All other winders estimate the number of rotations Lockin dynamic cuff: Patented lockin dynamic cuff ‘locks' your timepiece into the rotator drum for a secure fit. Low density foam to accommodate all wrist sizes without putting pressure on your bracelet. Exclusive: Return to start Your watch will return to the position it started in when the cycle has been completed Quadangled panelled lid Rotation options: Can be set between 300 and 1,200 TPD (turns per day). Double the amount of TPD by selecting a bidirectional setting. Fluted bezel, lock, and key security. Storage: 3 winding modules, 4pc watch storage with suspended cushions (cuff will accommodate up to 52mm case) 1 open compartment, travel case (1pc watch storage, 1 lidded compartment) Material: Vegan leather Wipe clean Imported