The adjustable wrench 9031P is made of precision-hardened steel, with a black, corrosion-resistant finish. The jaws are reversible so that it can be used for pipes, too. The slim head with tapered jaws allows it to be used in tight spaces. There is a measurement scale on the wrench head for pre-adjusting and accurate measurement. The wrench has an ergonomic handle with non-slip thermoplastic grip.