The American Lock No. A1306KABLU Solid Aluminum Padlock, Keyed Alike – multiple locks open with the same key – features a 2in (51mm) wide aluminum blue body and a 2in (51mm) tall, 3/8in (10mm) diameter boron shackle for superior cut resistance. Dual ball bearing locking mechanism resists pulling and prying and 5-pin APTC12 rekeyable cylinder is pick resistant and has tens of thousands of key changes.