RollerWave for RollerMouse Maximize Comfort The RollerWave is designed to replace the two removable foam pads that come standard with the RollerMouse. The replacement unit plugs into the slots on the RollerMouse's frame, providing a larger wrist-resting surface. Like the foam pads it replaces, the RollerWave is designed in a contour shape to maximize comfort, has an improved foam "gel", and is fully cleanable with mild soap and water. This new RollerMouse accessory follows the basic design philosophy of the evolutionary and truly differentiated RollerMouse - that is to change the feat of mousing, one user at a time. The RollerMouse, which swept Scandanavia is now sweeping North America and the rest of Europe. This new RollerWave can only serve to improve what's already a top-of-the-line computer pointing device Specifications Weight: 1 lbs. Product Max. Dimensions: 5" x 19.875" (Adds only 2" to depth of RollerMouse) Requires RollerMouse product (purchased separately) Model: RollerMouse RollerWave - Beige Part Number: RM-WAVE-01 Contour RollerMouse Accessory: RollerWave (Beige) - Does NOT include RollerMouse Buy NowModel: RollerMouse RollerWave - Black Part Number: RM-WAVE-02 Contour RollerMouse Accessory: RollerWave (Black) - Does NOT include RollerMouse