Blackburn Local U-Lock The Blackburn Local U-Lock offers a cost effective way to deter those wretched bike thieves. The hexagonal shackle will prove to be difficult to cut for the hacksaw wielding low-lives and the silicone coating will keep your paint protected as well. This lock comes in three different lengths to better suit your personal needs and Blackburn is kind enough to provide 3 keys. Features: 10 mm thick twist proof hexagonal shackle Silicone sheath keeps your bike protected from thieves, and safe from scratches Includes 3 keys Available in 3 sizes Compact 108x162mm Standard 108x196mm Long 108x230mm | Blackburn Local U-Lock Black, Long