Used. Tested & fully functional. Personally owned and used. Buy before Friday, and purchase will be schedule to ships out on Friday to the lower 48 states with USPS , UPS, or FedEx depending on weight and dimension of the package. Logitech T-BB14 trackball mouse in gray features a red marble trackball for smooth cursor control. It has a wired USB connectivity and two buttons for easy navigation. The unit is tested and confirmed to be in working condition. This trackball mouse is designed for precise tracking and is suitable for use with computers or laptops. The Logitech brand ensures quality and reliability in this unique and functional trackball mouse unit.