This discus padlock is manufactured to be tough and secure with a stainless steel exterior, welded seams to withstand the elements and 6-pin cylinder technology. With its 9 mm Dia shackle design that limits the exposure of the shackle, the 70mm disc padlock is less susceptible to bolt cutter attacks and can be used both indoors and out for multiple applications. Perfect for storage units, outside shelters, gates and trucks, the wider shackle opening allows for more applications.