X-keys O-Trac Trackball - ColoursX keys O Trac Trackball: Sturdy, Accessible Trackball for Young Learners Key Features: Ergonomic Design: The low profile case serves as a natural hand rest, helping to reduce wrist strain by aligning with the hands natural contour for a comfortable, relaxed fit. Drag Lock Feature: The convenient drag lock function allows users to click once to "lock" a drag action until a second click, enabling easier handling of tasks like text selection and item