Goldtouch KOV-GTM-R Comfort Mouse (Right-Handed) USB Moves your wrist into an ideal 24 angle, eliminating discomfort caused by wrist pronation. Over-sized buttons allow fingers to easily click without overly bending the interphalangeal joints. Reduces arthritic discomfort. Thumb cushion encourages a more comfortable grip. Plug-and-play installation, no drivers required.