The Logitech Trackman Marble Mouse T-BC21 is a wired optical trackball with a sleek gray design. Made by Logitech, a trusted brand in computer peripherals, this mouse features an ergonomic design for comfortable use. With a trackball for precise cursor movement and 4 buttons for easy navigation, this mouse is perfect for those who prefer a trackball over a traditional mouse. The USB connectivity makes it easy to set up and use with various devices. Made in China, this trackball mouse combines functionality with style for a versatile and efficient pointing device.