The watch pedestals rotate inside wood rings, A Lucite window in the lid allows for a wide dust-free viewing area, Two additional compartments have been built into the front of the case with viewing windows, The motors run silently as they keep your finest automatic timepieces constantly wound and ready at a moment"s notice, Winder Box Dimensions: 13"" x 12"" x 7, 5"", Bidirectional: Yes, Winder Shell Material: Synthetic Material, Inside Material: Synthetic Leather, Number of Winder Motors: 4, Watches per Motor: 1, Available Storage Areas: Non-Winding Display Window, Winding Display Case, Winder Modes: 4, Power Source: AC, SKU: STEIN064