Our original and longest-running design, RollerMouse Pro3, is centrally located in front of the keyboard and is perfect for those who work from a keyboard tray or rely on the 10-digit number pad to get the job done. RollerMouse allows users to work in a comfortable neutral posture and greatly reduce reaching and gripping. RollerMouse can reduce the pain and strain caused by a traditional computer mouse in the hands, wrists, elbows, and shoulders. RollerMouse Pro3 is designed to fit small to medium-sized hands.The wrist rest, made of vegan leather and memory foam, has an antibacterial surface and is highly resistant to disinfectants for optimal hygiene. The narrow wrist rest is ideal for smaller hands and compact workstations. The built-in copy/paste buttons make it easy to transfer text or images quickly between programs, and if you have other shortcuts, you frequently use, the buttons can be configured for them. Last but not least, we have used recycled materials to produce the RollerMouse Pro3.