Features: 1. Overall heat treatment, hardness up to HRC60, premium chromium vanadium steel forged gives high torque & more durable. 2. Suitable for various related repair industries like automobile, mechanical, bicycle, motorcycle repair, etc. 3. Chrome plating polishing, beautiful shape & design, not easy to rust and deform, can be used for a long time. 4. Can jam nuts of different sizes and shapes, special teeth can protect the thread. 5. Length: 270mm, Thickness: 8mm, Weight: 220g, lightweight and portable. Specification: Material: Chromium Vanadium Steel Product Color: Black, White Product Size: Length: 270mm, Thickness: 8mm Product Weight: 220g Package Included: 1 x Universal Double-Head Wrench