The Kryptonite New York M18 Lock is the highest security lock on the market, approved by Thatcham CAT3 and passed tests by FFMC and Classe SRA. The innovative design of this D-Lock proves impenetrable against commonly used tools and leverage attacks. The D-Lock is crafted from hardened steel and features unique locking mechanisms for added protection. The Kryptonite New York M18 Lock will prove durable due to its strong vinyl coating. Kryptonite New York M18 Lock Features Passed following tests: FFMC and Classe SRA 18 mm hardened Kryptonium steel shackle resists bolt cutters and leverage attacks Highest security, Pick-Safe anti-pick and drill resistant disc-style cylinder Hardened steel sleeve over crossbar provides double security protection Integrated sliding dustcover protects cylinder Double deadbolt locking mechanism for extensive holding power Centre keyway location deters leverage attacks U-lock dimensions: 1 x 26 cm 3 keys, including 1 lighted with every lock For increased security, pair with a New York Chain or Noose Vinyl coated and weatherproof Approved to bicycle Gold Sold Secure standard Approved to Thatcham CAT3