Nulea Wireless Ergonomic Vertical Trackball Mouse Thumb Control E-GreenThis vertical trackball mouse is built for users who spend extended hours at their computer and need to reduce wrist and arm strain. The 65° ergonomic angle positions your hand in a natural, relaxed posture, while the sculpted body with textured palm rest provides comfortable support throughout the workday. The thumb-controlled trackball lets you navigate your screen without moving your entire arm, helping minimize fatigue during long sessions. Ideal for office workers, designers, and anyone seeking a more comfortable computing experience.Itemweight0.57 poundsProductdimensions4.3 x 3.0 x 5.2