Extra cushioning helps distribute wrist pressure. Manufactured with two layers to provide extra support. Combines platform and wrist support into a single easy-to-reposition unit so you don't have to buy both. Platform design extends your desk, giving extra room for wrist support. Wrist Filling Material: Polyurethane Foam; Mouse Pad/Wrist Rest Type: Keyboard Wrist Rest; Color(s): Black; Theme: Solid Color.