Superior protection for medium to high crime areas. The OnGuard Pitbull DT Locks feature the X4P Quattro Locking Mechanism for four-sided protection. The hefty 14mm hardened steel TriRadius shackle resists cutting, prying and jacking, while also providing more internal space for locking versatility. The crossbar and shackle coatings protect finishes and provide increased locking versatility for securing bicycles and scooters. The X4P Quattro Bolt Locking Mechanism locks the shackle on four sides, and the Z-Cylinder is bump-proof and resists picking, pulling or drilling. The rounded design and centred keyway eliminates pry points. The lock also features a co-moulded crossbar cover and double rubber coated shackle to protect finishes, and all-metal end caps for additional protection against hits and drops. The automatic keyway covers seal the lock internals against the elements. The lock comes with 5 laser cut keys, where one key includes an LED microlight. The OnGuard Pitbull DT Locks come with a lifetime warranty and include an all-tube mounting bracket. Additionally, an additional double loop cable is included for securing components and accessories (not covered by D Lock Sold Secure rating).