This is a series of adjustable wrenches made by our CROWNMAN hand tools brand. First, this is a professional-grade adjustable spanner, size: eight/ ten/ twelve inches. It is forged from chrome vanadium steel material. The surface is blackened and not easy to rust. It is a high strength, and hardness is about forty to fifty degrees, which is long working life. The product is flexible and smooth. With TPR soft handle, it has a comfortable grip. it also has a multi-functional hexagon screw hole design, which is more convenient to use; it suits for workers who use it frequently; This is an ordinary type adjustable wrench, size: eight/ ten/ twelve inches. It is forged from carbon steel material. It is a high strength, and hardness is about thirty-eight to forty-two degrees. The surface is electroplated, and it is not easy to rust. The product is flexible and smooth. With TPR soft handle, it has a comfortable grip, and it meets daily work use. The last one is an American-style adjustable wrench, it is forged with carbon steel. It is high strength and hardness is about thirty-eight to forty-two degrees, size: six/eight/ ten/ twelve/fifteen inches. The product is flexible and smooth, the surface is electroplated, and it is not easy to rust. This is the most used type in daily life.