Heavy-duty, hardened weather protected steel body with bumper to protect locked item. Chrome Molybdenum steel shackle. 6-pin brass cylinder with dual stainless steel ball locking mechanism. Anti-drill, anti-pick and bump protection. Supplied with two keys. Heavy-duty, hardened weather protected steel body with bumper to protect locked item. Chrome Molybdenum steel shackle. 6-Pin brass cylinder with dual stainless steel ball locking mechanism. Anti-drill, anti-pick and bump protection. Supplied with two keys. Shackle Diameter: 14mm. Shackle Max. Internal Height: 30mm. Shackle Max. Internal Width: 30mm. Security Rating: 10.