The Horizon Fitness 004263-A Running Belt provides the moving surface needed for smooth and consistent treadmill exercise. This replacement running belt loops around the treadmill deck and rollers, moving continuously as the motor drives the belt during use. Proper belt movement supports stable footing and reliable treadmill operation. Replacing a worn or damaged belt can help restore... https://www.wholetoolbox.com/horizon-fitness-004263-a-running-belt/004263-A.html