Features: 1. Multifunctional universal wrenches: Self-tightening universal wrenches Suitable for the removal of screws of various sizes. 2. Double-ended wrench series: chrome plated and polished to prevent rust, standard 5/16 inch to 7/8 inch and metric 8mm to 22mm nuts and bolts. 3. Universal wrench design: the unique extra-long design can increase the torque and make better use of the leverage principle, saving more effort. 4. Wide application: this universal wrench is perfect for home improvement, construction, carpentry, auto, bike, motorcycle repair and home maintenance. 5. Efficient and durable: chrome vanadium steel with high hardness, good wear resistance and long service life