Suitable for bicycles, mountain bikes, road bikes can installed with all types of pedals Make the area near the Cranks thread more evenly stressed and protect the Cranks paint These pedal washers annoys caused by gaps resulted from over wearing of thread Make of stainless Steels, strong, rustproof and enduring Adding pedal washers could disperses force from thread to washer, avoiding matures wearing of Cranks / pedal thread