1. Forged by Nickle- iron alloy， made by special heat treatment， strong anti-rust ability.2. Precise process makes flexible jaw opening available.3. Add spring worm to keep jaw opening stable and strong torsion， durable and solid.4. Labor-saving device， easy operation.5. In line with ergonomic handle design and providing a comfortable grip feeling， more convenient for operation.Specifications:Model: TU-250A 6''Adjustable WrenchLength: 150mm / 6inchJaw opening: 0-20 adjustableColor: Yelllow and blackPackage Size: 15 * 4 * 1.5cm / 6 * 1.7 * 0.6inPackage Weight: 156g / 5.5oz