The Logitech Logi Trackball Mouse T-BC21 810-000767 is a wired USB trackball mouse that does not have a ball. Made by Logitech, this mouse features a trackball design that is easy to use and precise for navigating on your computer. With a USB connectivity, this mouse offers a convenient way to work or play without the need for a charger. Made in China, this trackball mouse is a reliable and efficient choice for those looking for a different type of pointing device.