The ultimate protection for high risk areas! Rottweiler locking technology, your own guard dog for your bike! An armoured twisted cable lock with high strength twisted steel cable encased in a cut-resistant hardened steel sheath that resists cutting. On keyed locks, X2P Double Bolt locking mechanism and Z-cylinder protect against pulling, picking, or bump attacks. On combo locks, Steel Ball Combo gear system resists picking and pulling, and allows 4-digit user-settable combination. Vinyl coated armor protects delicate paint jobs and finishes. Double rubber coated lock head cover provides better grip and protects against drops and hits. Keyed locks come with 5 laser-cut keys, 1 with micro-LED. Twisted Steel Cable Protected By Hardened Steel Links. New M-Key Cylinder Offers Optimum Resistance Against Physica. Reinforced Sleeve Over Crossbar And Cylinder For Additional Tough. Vinyl Cable Cover Prevents Scratching. Automatic Dust Cover. 5 Laser Cut Keys (Inc Microlight Key).