About this project HIGH QUALITY MATERIAL - The pedals come with a pair of adjustable rubber straps that allow you to customize the length to fit the shoe you're using. The high-quality strap easily withstands rigorous pedaling. Adjust the pedals and straps to suit your position before use. This pedal is 1/2 spindle. Please note (you will need to know the correct model you need before ordering in order to get the correct pedal).Pedal Specifications - Our pedals are 1/2" spindle (12.7mm diameter spindle). Fits all 1/2-spindle bikes, including indoor exercise bikes and spinning bikes. Product size: 136*108*53mm EASY INSTALLATION - Pedals are clearly marked left and right, check the markings before replacing pedals for proper installation. Bike pedals come with 1/2" spindles, check your needs and choose the right size. EXCELLENT CONTROL - The pedal surface has a non-slip design and has a rubber strap on top for a good connection to the shoe, preventing sudden slips. Better enjoy pedaling. Using YBEKI bicycle pedals