Feature 1 Made of carbon metal materials for put on resistance and durability 2 rubber handles for anti-slip and comfort grip three Used to fasten or eradicate round nuts and water meter covers on machine instruments and machinery 4 If the nut diameter is in the limits of the wrench specification range, it is compatible for a wrench of that length five Easy to use, reasonable and handy Specification: Fit For Round Nut: C Type 38-42mm / 45-52mm/55-62mm/68-72 Material: Drop Forged Carbon Steel Handle Material: rubber Finish: Black oxidized treatment: electrophoresis remedy Product hardness: 45-48HRC Package Content: 1 x Hook Wrench Spanner