Ehdching 7pcs Professional Transparent Cutaway Practice Padlock Locksmith Training Trainer Skill Pick Set Package includes:7pcs Transparent Cutaway Practice Padlocks(Family Portrait) You can see clearly how the lock works It will come out in perfect smooth working condition with no loose parts or pins Lock with open chambers on all the moving parts that allow you to see how it work Best Padlocks Lock Training Trainer Skill for Locksmith