Specs This lock picking set is perfect for apprentice locksmiths to learn or develop padlock picking skills and a great training tool for locksmithsThe 1/8” thick, credit card-sized case holds four solid metal lock picks and a solid metal double-sided tension tool hidden insideThe FREE practice padlock has a transparent shell which allows you to see the inner workings and gain a greater understanding of its operationUsing the lock pick set and the clear practice padlock provides a trial-and-error opportunity without consequencesThe set also includes a detailed lock picking instruction manual and two master keys for the practice padlock