The exceptional ergonomic design of the Bakker Elkhuizen HandShoeMouse Shift provides a surface to rest your hand, thumb and fingers and is contoured for cursor control with minimal muscle activity making it ideal for patients with acute pain. The ambidextrous Shift can be easily switched from left to right so you can use the mouse with both hands alternating. Other highlights: - Inclined to support the hand at 25° - Statically and dynamically stabilised arch prevents pain - Connects via Bluetooth 5.0 and recharges using a USB cable Size: Medium Also available in Small and Large BakkerElkhuizen guarantees the longevity of its products. Register your product before the basic warranty expires on the manufacturer's website using the registration code or the EAN number on your product for an extended warranty of up to 5 years on electronics or even longer warranties on non-electronic products! * Extended warranties apply to all non-electronic products with the exception of all gas spring parts, which are covered by a 5-year manufacturer warranty.