Position a bottle of chosen vintage wine or perhaps a select bottle of liquor in The Vino Vault. Choose a five letters code and lock the bottle in the puzzle, then present it to your dinner guests. Your guests may develop sour grapes if they're not able to figure out the word code which will open this puzzle wine bottle lock. You can easily set it yourself. Vino Vault wine cryptex comes with an instruction sheet to guide you through resetting the five letter code word. It's fairly simple.(wine bottle is not included).Although the Vino Vault wine cryptex accepts many standard 750 ml bottles, there are some size and shape limitations. Bottles must be less than 3-1/4" in diameter and no taller than 11-3/4". This permits use of many bottles, but Champagne, Chianti, and any "unusually shaped" bottle will not fit. Some Pinot Noir bottles fit, but we've found that many of these bottles tend to be shorter and larger in diameter. Whites like Rieslings, Chardonnays, etc tend to come in taller, more slender bottles that exceed the height requirement. Your best bet on finding suitably sized bottles are reds like Cabernets, Merlots, Shiraz - burgundy style bottles. Also if you want to string your friend out for a while, you are better off choosing a red that will age.If you would rather not walk into an expensive wine shop with a tape measure and get some funny looks from the proprietor, we have a two page template that you can print out (provided with the product).Holding the bottle and comparing it against the outline will tell you pretty quickly whether you've got one that's going to fit or not.