10 pieces of padlock shim picks, designed to take advantage of mechanical imperfections and tolerances to unlock, suitable for practicing lock picking. Features: 10 pieces of padlock shim picks, suitable for lock picking practice. Made of very thin stainless steel to fit the contour of the hasp of the lock. Designed to take advantage of mechanical imperfections and tolerances in the latching design of some popular brands/models of locks. An easy way to open many padlocks is to use padlock shims. Just push one down between the hasp and the body of the lock to disengage the locking mechanism. Specifications: Material: Stainless Steel Thickness: 0.18mm Package Size: 12 x 8 x 2cm / 4.7 x 3.1 x 0.8in Package Weight: 19g / 0.66oz Package List: 10 x Padlock Shim Pick