Jmkcoz Professional Lock Pick Set Transparent Visible Cutaway of Padlocks Locksmith Training Practice Lock Trainer Lock with 2 keys Package include: 1 x Lock, 2 x Keys Transparent lock, you can see clearly how lock works, useful for Locksmith to train and practice With perfect smooth working condition, without any loose parts or pins, give you professional feeling All the moving parts of the lock have open chambers so you can see how it works clearly Lightweight and durable for convenient and repetitive usage.