Elecom Trackball Mouse Replacement Ball M-B1RD Diameter 34mm Red Ball This is a new, unused item. It was opened to check the contents before listing. There are no noticeable scratches. I purchased this several years ago and stored it in a drawer with low humidity. It has not been subjected to any impacts, such as being dropped. This is a 34mm diameter type. It can be used with ELECOM wireless mice (M-DT2DRBK, M-XT4DR, etc.). It will be shipped quickly via anonymous delivery with waterproof and impact protection. Trackball, trackball mouse, 34mm, M-B1RD, replacement ball, red, metallic