Padlock shims are formed pieces of thin yet stiff metal designed to take advantage of mechanical imperfections and tolerances in the latching design of some popular brands/models of locks. In other words, padlock shims are a bypass tool, not a pick.
An easy way to open many padlocks is to utilize Padlock Shims; It made of very thin spring steel, our padlock shims come in several sizes to fit the contour of the hasp of the lock.
Just push one down between the hasp and the body of the lock and twist to disengage the locking mechanism. Pretty slick!