OnGuard: Our reputation for innovative design and unbeatable toughness sends thieves a message that comes through loud and clear: go find something easier to steal. And thanks to the many who've made OnGuard their number one choice for security products, thieves will be coming to that conclusion a lot more often. It's easy to see the OnGuard advantage. Features like OnGuard's exclusive X4 and X2 locking mechanisms, M-Cylinder tumbler system, and proprietary steel alloys are the standards by which others are measured. Plus there's value-added features like rotating dust covers, finish-protecting vinyl coverings, chain covers, keys and combos with built-in lights, solid protection plans and limited lifetime warranties. Now that's formidable.