HIPLOK uses a four tier security rating system featuring Basic, Medium, High and Maximum levels The DC consists of a high security D-lock with the added benefit of a 1 meter steel cable that stows neatly into the interior shackle area The DC consists of a high security D-lock with the added benefit of a 1 meter steel cable that stows neatly into the interior shackle area With a slim profile and the Clip + Ride system, the DC fits easily on to bags and belts while reflective detailing helps the rider to be seen in low level light 13mm hardened steel shackle, hardened steel body casing, tough nylon outer shell 3 keys with coded key replacement program Locking Size: 13.5cm/5.3` x 7cm/2.75` internal area