This is a fairly complex Japanese Puzzle Box that requires 72 Steps to unveil the main compartment. A 5 Yen coin is hidden in an additional small compartment inside the lid of the puzzle. Measures* 8.6 x 6.25 x 4.5 inches Secret Compartment measures approximately 6.25 x 5.5 x 3.5 inches. Comes in cellophane wrap and opening diagram!