HIGH QUALITY MATERIAL - The pedals come with a pair adjustable rubber strap, allows you to custom the length to accommodate the shoe you using. The high quality strap easily survive the rigorous pedaling. Adjust the pedal and strap to fit your position before use. EASY TO INSTALL - the pedals are clearly marked left and right, Check the mark before replacing the pedal so that it can be installed correctly. EXCELLENT CONTROL - The pedal has a non-slip design and rubber straps on the top for a good connection to the shoe, protecting you from sudden . Better enjoy the pedaling. With the bicycle pedal, you get excellent control when pedaling your bike Installation sequence: Please pay attention to the (R) and (L) marks on the two pedal spindles before installation. (R) is the right pedal of the bicycle, (L) is the left pedal of the bicycle. Wipe some lubricating oil before installation to make the installation smoother. Colour:black Material:PP+PVC The diameter: 1/2inch Size:162 x 148 x 52mm Package Contents: 4 x exercise bike pedals Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.