Padlocks Type: High Security Padlocks / Disc padlock from Master Lock. Stainless steel corrosion resistant body and boron carbide, octagonal, rotary action shackle. Double ball-bearing locking levers and 4-pin tumbler cylinder. Closed shackle for lever resistance. Includes 4 keys. Features: Covered Keyway for Weather Protection. Specifications: Body W x H x Th: 70 x 45 x 28mm. Max. shackle W x H: 21 x 16mm. Shackle dia: 10mm. Weight: 0.6kg.