Abus closed shackle 34 series tough steel padlock with through hardened steel alloy shackle and lock body this padlock will resist all but the most brutal of attacks precision 6 pin tumbler cylinder with anti pick mushroom pins which resists picking and ball bearing locking which resists lever and torsion attacks key operated key retaining lock cannot be left open without keys where to use it medium to high security ideal for use in external conditions cen class 4 overall width 55mm overall heig