The Proform 245336 Treadmill Walking Platform provides a stable surface for smooth and consistent walking or running during treadmill use. Designed as a replacement walking platform, it supports the walking belt and user while providing a firm base for the belt to move across during exercise. Proper platform condition helps maintain smooth belt movement, consistent workout performance... https://www.wholetoolbox.com/proform-245336-treadmill-walking-platform/245336.html