Be better at what you do with the Contour Design RollerMouse Free3 ambidextrous mouse. Its unique design sits in front of your keyboard and relies on the patented Rollerbar to control the cursor. This new cursor control lets you work with your thumbs and fingers and can be used ambidextrously. What’s more, the front-of-keyboard placement reduces unnecessary muscle activity in your arms, shoulders, and neck. Even better, this workspace gadget features a wrist rest with a gradual incline. So it’s ideal for professionals with medium or large hands. And, of course, this new mouse doesn’t require gripping and squeezing like a traditional mouse. So it reduces hand, wrist, and forearm strain. Impressively, it comes with an array of useful buttons. The are 4 main function buttons: left click, right click, scroll lock, and a 1-touch double click. Then, there are also 4 shortcut buttons: copy, paste, forward, and back.