Size: 15cm (5.91in) in length and 6.0cm (2,36in) in diameter Metal cryptex. The cryptex has 5 rings with ten numbers (from 0 to 9) on each of them. Players should find the only correct combination to remove the core part of the cryptex, which is a hollow cylinder: 6cm (2,36in) in length and 1.7cm (0,67in) in diameter. Keys or a note with a hint can be put inside the cylinder. According to your needs we can change numbers into letters (up to 10 letters per ring) or symbols/figures.