The standard in U-lock security is now available a more compact version for even better portability and leverage attack resistance. The Series 2 Mini U-Lock offers all the bombproof features of their STD model including a 13mm steel shackle deadbolt locking mechanism and pick and drill resistant disc-style cylinder. Offset key location and overhead cam locking mechanism resists twisting. Rotating dust cover protects key hole. 2 keys included. 3.25 x 7 8.2cm x 17.8cm.