FULL-SIZE. FULL COMFORT Optimal comfort for your right or left hand with a contoured shape designed to follow the natural curve of larger hands. Specially scooped buttons guide your fingers into ideal placement, while additional palm support provides all-day comfort. QUALITY THAT LASTS Get the durability and reliability that comes from the #1 world leader in mice and keyboards. Whether you use M190 with a laptop, desktop, at home or on the go, this is a mouse you can depend on