Made of carbon steel with ergonomic and non-slip handle, strong and durable Efficient and practical: the light weight system allows one-handed use, thus saving strength Two universal keys that fit all kinds of screws and nuts and automatic technology that allows them to automatically adapt to different sizes Using this set, it is the right solution to solve your problem of tap, valve, pipes and pipeline, radiator, boiler and wheel Large adjustable wrench - length: 280 mm, weight: 380 g, opening size: 22-32 mm, small adjustable wrench - length: 210 mm, weight: 180 g, opening size: 6-22 mm