The Master Lock No. 517D Laminated Padlock features a 1-3/4in (44mm) wide laminated steel body for strength and reliability. The 9/32in (7mm) diameter shackle can be adjusted from 2-3/4in (7cm) to 5-3/8in (14cm) long for application flexibility; and is made of steel, offering strong resistance to cutting. The warded single locking lever mechanism minimizes jamming from dirt and grime.