Masterlock: Master Lock's high security D-Lock offers optimum security with its 13mm hardened steel shackle. The disc cylinder and dual locking mechanism provides a tough level of resistance against attack and prying. It has a dust cover to protect the keyway against the elements and grime. Carrier bracket included for easy and convenient storage.Shackle combined with looped end braided steel bonus cable allows for a wide range of uses and applications. Shackle clearance of 210mm x 110mm