The magic wrench works with any shape of nuts or bolts. Compatible with all types of bolts and nuts - Wrench size can be extended from 9 to 45mm. Ergonomic design: practical for working in tight spaces. The red part of the key is made of rubber material, so that it prevents the key from falling down. Easy to use: No more guessing the sizes of bolts or pipes, fully adjustable with one hand pressure. Coverage area: instantly holds pipes and fittings from 9 to 45 mm. The magic key is completely versatile and can be used for industrial and professional work. You can tighten any screw with this magic wrench. You can also use this key for housework. Features: Type: multifunction wrench. Material: high carbon steel. Length: 293 mm. Width: 46 mm. Thickness: 12 mm. Available sizes: 9mm-45mm. Package contents: 1 magic key. Attention: 1. Wear gloves and eye protection for your safety. 2. Keep your fingers away from the jaw teeth. 3. Keep out of the reach of children.