[The Story of The Da Code]: The Da Code is copied from the da manuscript in "The Da Code". According to the storyline, the cryptex contains a scroll about the greatest secret of the of Sion and of as a whole. To open the lockbox, you must unlock the five-digit code. There are 6 dials on the cipher cylinder, each dial has 26 letters, and there may be as many as 308915776 combinations of cipher cylinders. [Easy to use] Password setting: The default password for password is I , you can also set your own password. You can play a detective game with your partner or children, providing different clues and letting the other person analyze the code and get the clues. This puzzle game not only trains your thinking skills, but also enhances your emotions. [Romantic Surprise ]: If you want to propose to your loved one or celebrate any anniversary, just put a ring or anniversary inside, or even just a commitment note. This be a romantic surprise for them! [A Must Have for Puzzle Lovers/Game Lovers]: A great for anyone who loves games, puzzle games, escape room gadgets, etc. Perfect for any puzzle game or enthusiast: you can hide your next clue/prize inside. Some people use it as a puzzle for players in games, and some people use it for murder mystery parties. [Heavy Duty, , Well-Made, Easy to Customize]: Made of materials, zinc alloy and copper plating. Quite heavy and the detailing on the product is gorgeous. The moment you see it, you feel its quality. It is also reusable. Colour:As Shown Material:Copper + zinc alloy Package Contents: 1 * password lock 2 * rings 1 * lanyard Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.