MMM C Optical Ergonomic Trackball Large MouseSold as 1 EA
This mouses unique vertical grip keeps hand and arm in a neutral position, reducing pressure on wrists median nerve. Clinically proven to reduce discomfort associated with carpal tunnel syndrome. Features a programmable third button. Global Product Type: Mice; Mouse Technology: Optical; Trackball; Connector/Port: PS/2; USB; Left/Right Hand Use: Right.
Brand: 3M, Model: EM500GPL, Color: Graphite