Designed by MicrosoftAdvanced ergonomic design that encourages a natural hand and wrist posture Reduces pressure on the carpal tunnel area by placing the wrist in a natural, comfortable position Thump scoop is designed to help maintain the correct ergonomic hand and wrist position over time One-touch Windows button for quick access to the Start MenuIsolated back button for faster navigationSeamless four-way scrollleft, right, up an downfor quick navigation and precision control Made for all-day creativity, the Sculpt Ergonomic Mouse, Designed by Microsoft, enhances alignment while maximizing wrist comfort. Shaped to encourage a more natural hand, wrist, and forearm posture, the mouse features a four-way scroll wheel as well as a Windows button for one-touch efficiency. Mouse Buttons type Pressed buttons Buttons quantity 4 Number of scroll wheels 1 Scroll type Wheel Device interface RF Wireless Purpose Office Design Material Acrylonitrile butadiene styrene (ABS), Polycarbo