I have a decent lock picking set. You don't need a see through lock. My grandfather was a spy for USA in USSR, and taught me how to pick all kinds of locks. Never had YouTube or a see though lock. Repetitive practice is good. You will learn how to make additional tools.
treal512Guess I should have said,"Practice, Practice, Practice." Any padlock, home door lock, or deadbolt will do. It's repetitiveness that will increase your skills. Picking a lock in a time of panic will test you. By the way I have no respect for you or your previous comment.
CarhaulerI don't even know how locks work. Without guides or videos or this kind of see through locks, I highly doubt I'll ever come close to picking a lock