This is a very lightly used speed sensor For Nordictrack , Proform or many other Icon Health Treadmill it has a 32" lead and the mounting Grommet. The sensor itself also fits many more Icon Health, Weslo ProForm Gold's Gym treadmills. As with all of our use Parts this item was pulled from a working treadmill. don't pay too much for your treadmill Parts why buy new when used will do?!?!