Carbon-nitride hardened, tempered nickel plated solid steel body, with a protective sleeve.

Chrome-nickel molybdenum alloy steel hardened shackle. Bolt-cutter and lever proof shackle protector Double steel ball locking. 

High security anti-pick cylinder, two carbon-nitride hardened steel keyhole escutcheons. Changeable cylinder. Reversible key and key retaining

Supplied with 3 keys per lock

Also available keyed alike and master keyed