[Multifunction wrench]Universal wrench's different sizes can meet your different needs. Universal wrench is suitable for standard 5 / 16 inchto 7 / 8 inch and metric 8 mm to 22 mm nuts and . [Chrome vanadium forging]Overall heat treatment, hardness up to HRC60, high quality chrome vanadium steel forging, the wrench is made of chrome vanadium steel with high hardness and super durability. Even after a long time of use, a strong wrench can still work . [Chrome-plated and ]The surface of the wrench is treated with overall heat treatment and plating, which has super high anti-corrosion and anti-rust properties. You can use it freely in any possible work and repair occasions. [Apply To]Self-tightening wrench is suitable for a of screws, nuts disassembly or maintenance, opening, screws and nuts. [Wide range of applications]Nuts repair wrenches is suitable use, mechanical engineering, machine repair, auto repair and other related maintenance industries. Color: silver+black material: metal Package Contents: 2 x Wrench Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.