Material: special tool steel, hardened and tempered surface finish: chrome plating in accordance with the EN12540 standard Double-layer handle The shape and dimensions of the tools are always adapted to the latest standards used in bicycles. The single-sided wrench is characterized by high hardness, durability, and resistance to damage, and it also fits tightly to the handlebars and bearings. The wrench allows for easy adjustment and loosening of handlebar nuts. The ergonomic shape guarantees excellent functionality. Furthermore, the tool fits perfectly in the hand, making work easy and comfortable.