The Master Lock No. 10 Laminated Padlock features a 1in (25mm) wide laminated steel body for strength and reliability. The 5/32in (4mm) diameter shackle is 7/16in (11mm) long and made of steel, offering strong resistance to cutting. The warded single locking lever mechanism minimizes jamming from dirt and grime. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.