14mm hardened Max-Performance steel shackle resists cutting and leverage attacks Double deadbolt locking mechanism has extensive holding power High security disc-style cylinder with reinforced anti-drill, anti-pull protection system Sliding dust cover protects and extends cylinder life 3 stainless steel keys - one lighted with high intensity bulb & replaceable battery 14mm 1.8x2.1`/4.57x5.33cm DISC Blk 8 of 10UPC/EAN/GTIN: 720018999607