10 wrenches in sizes 8, 10, 11, 12, 13, 14, 15, 17, 19, 22. The wrenches are made from premium chrome vanadium steel with higher density at points of greater pressure, providing strength and durability. With the special security cut, the wrenches prevent damage to the corners and edges of screws and nuts by evenly distributing the force across the surface. The state-of-the-art design ensures accurate and effective power transmission for fastening heads and nuts.