Contour RollerMouse USB 3.3.1204.0

Revolutionary rollerbar provides single finger point and click functionality
Adjustable click force on rollerbar (5 levels of tension) using simple knob under RollerMouse. (Rollerbar click function can be disabled using dip switch if user prefers using buttons)
Smooth sliding steel rollerbar coated with soft rubber for excellent feel and cursor control
Long Lasting - Optical sensor reads bar movement using the latest technology, nothing to wear out
3 user definable buttons and a scroll wheel (5 buttons on PRO)
Buttons configurable for Click, Double-Click and Draglock via dip switches or software (depends on version)
PC and Mac compatible (USB device with PS2 adapter included)
Secondary PS2 port for connecting one additional input device (Classic model only)
Soft but firm lycra wrist rest support. Removable for easy cleaning - Larger model (RollerWave) also available as an accessory pictured to left
20-7/8" Wide x 11-3/8" Deep x 1-1/4" High (all measurements from maximum locations)