material: chrome-vanadium steel surface finish: chrome plating in accordance with the EN12540 standard drop forged, fully hardened and tempered How to use the device: The pedal wrench is designed for quick and efficient pedal installation and removal. Extra long and thin, with specially designed jaws for a perfect fit, it allows for comfortable operation without the risk of damage compared to traditional open-end wrenches. The pedal wrenches are available in three sizes: 15 x 15 for pedals, and 15 x 17 and 15 x 9/16 for hubs.