Rollermice

The traditional mouse can force you to use your arms, back, shoulders, necks, hands and even wrists to perform a very simple task - moving the cursor on a computer screen. This can be the root of many potential problems, from Carpal Tunnel Syndrome to Repetitive Strain Injury (RSI), which can cause pain.

Central pointing devices are alternative mousing devices that can be used in front of your keyboard to create an inline workspace, ultimately addressing overextension of the mouse on the right or left side of the keyboard.