About this item Bike pedal specifications: This bike pedal has a 1/2" axle (12mm shaft diameter). Compatible with all 1/2" axle bikes, including exercise bikes and spin bikes. Adjustable: The bike pedals come with a pair of adjustable straps that allow you to customize the length to fit your shoes. Safety: With these bike pedals, you can better protect your feet from sprains during exercise. The surface of the bike pedal is non-slip, making your workout more comfortable. Easy to install: This product comes with a toe support. Simply identify the "R" and "L" markings and follow the installation instructions using the wrench. Fit for spinning: The bike pedals are designed for spinning. Compatible with 1/2" exercise bikes and spin bikes. Size: Thread diameter: 12 mm Due to different monitors, the displayed color may vary; please refer to the actual color of the product received. Package contents: 1 pair of bicycle pedals (other products such as bicycles are not included).