The Master Lock model no. 7641EURDBLK resettable combination padlock with master key features a durable 40mm wide zinc body with a black painted finish. The shackle, 6mm in diameter and 27mm long, is made of nickel-plated steel and resistant to cutting and sawing. The security offered by the adjustable 4-digit combination provides keyless convenience. The master key offers emergency access and a decoding function in case the code is lost, ensuring you are never locked out if you forget the combination. The limited lifetime warranty provides peace of mind from a brand you can trust.