Excellent condition. It does have a mark that can be seen in the photos. Tested and working

The ITAC Systems Inc Mouse Trak USB Port Trackball Evolution X-SCROL-XROHS is a rare and unique trackball mouse designed by the brand Mouse-Trak. It features USB connectivity, allowing for easy plug-and-play functionality with computers. This innovative trackball offers a different pointing experience compared to traditional mice, making it a valuable and specialized option for users looking for a reliable and efficient pointing device.