The Master Lock No. 6271 Pro Series hidden shackle padlock features a 73mm wide reinforced die cast body that withstands forcible attacks and a 9mm diameter boron alloy shackle. The Lock body conceals the shackle, defeating attempts to pry and cut. Ideal for transportation, vending and industrial applications, the high security, rekeyable 6-pin cylinder with spool pins is virtually impossible to pick. Body Width: 73mm Shackle Diameter: 10mm Use with Master lock 770 vehicle hasp What's in the box 1 x Mater Lock Padlock 2 x Keys