Magsolid Shackle Lock offers superior protection for medium to high crime areas. It comes with X4P Quattro Locking Mechanism for four-sided protection. The hefty 14mm hardened steel Tri-Radius shackle resists cutting, prying and jacking while providing more internal space for locking versatility. With new crossbar and shackle coatings to protect finishes - the Z-Cylinder is bump-proof and resists picking, pulling or drilling. It also comes with all-metal end caps that provide additional protection against hits and drops. The automatic keyway covers help seal lock internals against the elements. 5 laser cut keys (1 micro-light and 4 extra grip keys).