RollerMouse Pro3 is developed for demanding tasks that requires repetitive movements. Pro3 is a great option for professionals and anyone else who uses a mouse for long periods every day. Sitting below your keyboard, Pro3 eliminates the need to reach for the mouse, lessening stress from your neck to your fingers.The width of this RollerMouse makes it especially suitable for standard or full-size keyboards for comfortable typing. Rollermouse Pro3 allows you to work faster, and more comfortably.Pro3 is designed with helpful features such as copy - paste button with one click, 3 different mode options and the option to customize your click force and cursor speed. Choose from ten cursor speeds ranging from 600 to 2400 dpi by using the central cursor speed button.Blue lights signify which speed setting you are currently using from lowest to highest.You can adjust the amount of pressure required to perform a mouse click.Use the click-force tension slider located under your RollerMouse Pro3. Simply slide it until you find the tension that works best for you.An aluminum base reduces risk of slipping.A leatherette wrist support runs the length of the incline of the unit. The scroll wheel is slicker, making it easier to use and navigate across the page. RollerMouse Pro3 comes with risers that are inserted at the center of the unit, and covered with rubber to keep your RollerMouse Pro3 in a firm and steady position. The more fixed RollerMouse Pro3 is on the table or desk, the easier it is for you to find the right buttons and maintain your preferred working position.