Scroll comfortably with the Logitech Signature M550 L Wireless Mouse in Graphite. The Logitech Signature M550 L Wireless Mouse in Graphite offers Logitech Smart Scrolling technology to adjust the speed and precision of your scrolling wheel to suit your needs. The ergonomic design features a contoured shape, soft thumb area, and rubber side grips for a comfortable hold. You'll love how quiet this mouse is thanks to the SilentTouch feature that reduces 90% of clicking noises associated with frequent mouse use | Logitech Signature M550 L Wireless Mouse - Graphite in Black