A trackball is a pointing device consisting of a ball held by a socket containing sensors to detect a rotation of the ball about two axes—like an upside-down mouse with an exposed protruding ball. The user rolls the ball with the thumb, fingers, or the palm of the hand to move a pointer.

Pretorian Technologies

Pretorian Technologies' logo

With over forty years experience in the design of trackballs, Pretorian Technologies is ISO 9001:2008 registered for the design and manufacture of human input devices for the Special Needs and Industrial markets. Through the combination of state-of-the-art design techniques and manufacturing expertise, Pretorian Technologies products are sold worldwide via a large network of Distributors and specialist OEMs.