Boasting a hardened steel 12mm shackle and an intuitive spring release mechanism, it's a breeze to use. The universal fitting bracket accommodates all bike styles, while the vinyl coating safeguards your frame from scratches.With three high-security keys, a keyhole dust cover, and a convenient carry bracket, it's your reliable companion for bike security.Sold Secure approved: Pedal Cycle SILVERDouble locking mechanism with spring releaseKey hole dust coverCoated in Vinyl to protect your paintworkCarry bracket included3 high security keys Dimensions: H320 x W158mm, 12mm shackle. The Sentry U-Lock is a lightweight security product that has been awarded a SILVER rating by the independent testing service Sold Secure.A hardened steel 12mm shackle combines with a spring release mechanism in the locking bar to make this an extremely use-to-use product. The universal fitting bracket is compatible with all styles of bike and the vinyl coating will ensure that it does not scratch your frame. The lock comes in two sizes and can be purchased with an optional extender cable to keep quick-release wheels or other accessories secure too.Key Features Pedal Cycle SILVER (the extender cable is not part of the Sold Secure approval) Double locking mechanism with spring release Key hole dust cover Coated in Vinyl to protect your paintwork Carry bracket included 3 high security keys Dimensions: 12mm? shackle, 275(h) x 110(w)mm (+ 10?mm x 1.2m cable) Available in two lengths: 275mm (LK328) and 190mm (LK327) shackle lengths and the Duo (LK329) has the additional security of a cable This product has met the high demands of the Police Preferred Specification and has been accredited 'Secured by Design' (SBD)SBD is a police initiative which seeks to reduce property theft by encouraging good design and practice, thereby reducing the demand on police forces and helping us all live in a safer society.12mm hardened steel shackle Carry bracket included Double locking mechanism with spring release Vinyl coated to protect your paintwork Key hole dust cover, Manufacturer: Oxford