Adjustable Incline Stepper Improved safety with non-slip processing. - Brand: stan - Color: Gray/White - Design: Adjustable Incline - Base: Non-slip processing The basic usage is simply to stand on the stretch board. By standing on the stretch board, you can thoroughly stretch the back of your body, such as your Achilles tendon, calves, hamstrings, buttocks, lower back, and back. With this one device, you can thoroughly stretch your lower body, which tends to get tired easily.