It is made of rubber which has good wear resistance and tear strength. The left and right are clearly marked so you would not be confused about it. This pedal strap is adjustable that you can adjust according to your needs. Our pedal strap is wider, longer and thicker to make you feel more comfortable while you are exercising. The maximum length is 33 cm (13 inches). It is designed to fit most stationary and exercise bikes. You need a long time for these improved exercise bike pedal straps. This one is adjustable and the maximum length is 33 cm (13 inches) which can fit on most type feet and most stationary bikes. This strap is durable and tear-resistant for it is made from rubber material. And the improved length, width, and thickness make it more comfortable to use. Product Information Material: Rubber Length: 33 cm (13 inches) Package Includes: One Pair of Bike Pedal Strap LRFR is committed to providing each customer with the highest possible standard of customer service.