New riser design enables you to boost one side of the 4"H platform at a time, creating angles and opening the possibilities of new steps, bodyweight training, and balance training. New risers allow for the platform to be angled both length and width directions, and you can still vary the height of each side by stacking the risers in different combinations. Break out funky new twists to aerobics, or use the 2"H risers conventionally to deliver the same great workout you've come to know from The Step®. Platforms also feature softer, shock-absorbing nonslip rubber surface for increased traction and support, as well as rubber feet underneath for floor protection and stability. Supports users up to 250 lb. 43"L x 16"W x 4"H.