It is made of rubber which has good wear resistance and tearing strength.The left and right is clearly marked so you wouldn't get 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) and the maximum width is 5.7 cm (2.3 inches). It is designed to fit most stationary and exercise bikes.1 Pair Exercise Bike Belts Bicycle Pedal Straps Generic For Cycling. Specification: Pedal Category: Ultralight Pedal Use: Mountain Bikes Use: Road Bicycles Model Number: Bike Pedal Strap Pedal Device Category: Pedal Package Included: 1Pair Pedal Strap (without Pedal) .