Laminated steel padlock. Hardened steel bottom plates for extra drill resistance. Top & bottom bumpers for greater scratch resistance. 9/32" (7mm) diameter, 3/4" (19mm) high, 5/8" (16mm) wide shackle, 1-9/16" (40mm) wide laminated steel body for superior strength. Hardened steel shackles for extra cut resistance, Keyed different, Non-rekeyable, 4-pin tumbler cylinder helps prevent picking. Dual locking levers provide extra pry resistance.