The Master Lock No. 6 Laminated Brass Padlock features a 2in (51mm) wide laminated brass body offering excellent corrosion resistance, making this lock ideal for marine and other harsh environments. The 1in (25mm) tall, 3/8in (10mm) diameter hardened steel shackle provides excellent cut resistance. Dual locking levers provide extra pry resistance and the 4-pin W1 cylinder helps prevent picking.