The AbleNet Bigtrack 2 USB Ergonomic Trackball Mouse is a white trackball mouse designed for easy and precise navigation on the computer. With an ergonomic design, it offers a comfortable grip for extended use. The trackball features a 2-button configuration and connects easily via USB, making it a convenient and user-friendly option for those who prefer a trackball over a traditional mouse. Made in China, this trackball mouse is a reliable and efficient tool for controlling the cursor on your computer or tablet.