Wolf Single Cub Tutti Fruitti Winder with Cover - Green SIZE: 5.25" L X 6" W X 5.75" H FEATURES Patented Innovation - Every WOLF winder counts the precise number of rotations. All other winders estimate the number of rotations. Lock-in dynamic cuff: Patented lock-in 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. Rotation: 10 second start delay, 900 TPD (Turns Per Day), patented rotation programs - Intermittent rotation with pause and sleep phases pre-programmed. Directional Settings: Bi-directional Battery Option: Option to run the unit on AC power (universal adapter included) or AA batteries - alkaline or lithium (lithium batteries will last twice as long as alkaline batteries). Batteries not included. Storage: 1 winding module Material: Vegan Leather