Features:1. Lock with open chambers on all the moving parts that allow you to see how it work;2. You can see clearly that how the pins work when a key is inserted;3. It will come out in perfect smooth working condition with no loose parts or pins;4. You actually can see the pins moving up and down as the key slides into and out of the lock.Specifications:1. Color: Transparent2. Material: Plastic & Metal3. Size: approx. 8 x 5 x 2.4cm (L x W x H)4. Net Weight: 130gNote: Due to the difference between different monitors、 the picture may not reflect the actual color of the item. Thank you!What's in the box:1 X Cutway Padlock2 X Key9 X Locksmith Crochet Hook1 X L Shape Tool1 X Z Shape Tool