The double bolt locking mechanism provides added strength and high pull resistance by locking tight to 2 sides of the bar the new user friendly pick pull and drill resistant onguard z key cylinder featuring bumpblok offers optimum deterrent against physical attack includes 5 laser cut keys 1 micro light and 4 extra grip keys includes 5 laser cut keys 1 micro light and 4 extra grip keys all tube mounting quick release bracket massive 13mm ultra hardened steel shackle provides maxim