Our bicycle pedals are made of high quality aluminum alloy, which is sturdy and durable. This bike pedal is designed with 9/16 inch thread, standard size which is compatible with most bicycles, such as road bikes, mountain bikes, BMX bikes, etc. The pedals have a large platform area and adjustable anti-skid nails, which provides excellent grip and stability. The pedals come with 8 removable stainless steel pins, which can provide better grip and prevent slippage during exercise. The pedals have a hollow design, which can reduce weight and increase pedal stiffness.