This Wolf Designs Savoy Watch Winder with Storage is made of burlwood. It has a locking glass cover. This unit can wind two watches at the same time and includes settings to turn clockwise, counter clockwise, or bi-directional. Storage for additional watches is available at the top of the unit. This watch winder can be set to turn between 300 and 1,200 turns per day. The winder can be powered by either an AC power adapter, which is included, or by D-cell batteries. Batteries are not included.