【Benefits of a Trackball】 Trackball mice reduce wrist strain and allow for precise operation. They are especially ideal for design and CAD work. 【High Operability】 The red ball is highly visible and enables smooth movement. It also features multi-function buttons for efficient work. 【Compact Design】 The compact size allows for effective use of desk space. It's also convenient for carrying around. - Brand: DEFT - Model: ID-1DPRM-TD20/USB/EM003 - Type: Trackball - Color: Black - Ball Color: Red - Connection: USB Thank you for viewing.