Sentry KX500 Mouse Pad with Touch-Activated Color Changing Lights. The mouse pad base is made of soft non-slip rubber which can firmly grip the desktop, provides a superior stability on desk, allowing you to enjoy the ultimate precision in the most passionate game. The size of 800 x 300mm/ 31.5x11.8 inches fits your mouse and keyboard perfectly and still has a large amount of movement space. Applies to all types of keyboards and mice, providing plenty of room for professional gaming or office work. This backlight RGB mouse pad is power by USB.