【Wide Range of Applications】-- This is a convenient tool for tasks such as faucet installation, plumbing work, water repairs, car tire changes, and DIY projects. It can be used as a double-ended wrench, pipe wrench, and monkey wrench, and is suitable for round pipes, round-head nuts, nuts with fittings, and bolts with damaged heads (corners). 【Automatic Locking】-- The automatic locking mechanism allows for one-handed operation, increasing work efficiency. It also has a substantial weight, and is made of high-quality chrome vanadium steel, making it thick, strong, and heavy-duty. It's a "tool-like tool" that allows you to focus solely on the task at hand without worrying about it breaking or bending. 【Easy to Grip】-- The grip has an easy-to-grip TPR coating, making it comfortable and easy to use. The design of the crowbar-shaped bottom makes it a versatile wrench that meets various needs. 【Secure Grip】-- The inner side has shark-tooth-like ridges that grip tighter as you turn, preventing slippage and making work easier. 【Sizes】-- Small: Opening range 14-30mm, weight approx. 0.43kg; Large: Opening range 30-63mm, weight approx. 0.88kg