Kensington Orbit Trackball Wired Ergonomic Mouse TK-564M Depth 39mm Weight (with battery):

Depth 39mm Weight (with battery): 75

0cm with Mount)

Key difference between the RollerMouse Red and RollerMouse Red Plus lies in the palm support

Yield: Up to 300 pages per cartridge in accordance with ISO/IEC 24711

Kensington Orbit Trackball Wired Ergonomic Mouse TK-564M Depth 39mm Weight (with battery):Kensington Orbit Trackball Mouse Effortless control and ergonomic design for all day comfort and precision. The Kensington Orbit Trackball Mouse offers superior ergonomics and control, reducing hand and wrist movement for lasting comfort. The centrally located 40mm blue trackball ensures smooth, accurate cursor control. Its ambidextrous design caters to both left and right handed users, while the scroll ring provides seamless navigation through web