This 5 Sun Yosegi Puzzle box can be opened in 21 Steps. *Difficulty-Moderate to Difficult Comes with opening instructions and Gift Box! Measures* 5.875 x 3.75 x 2.75 inches Secret Compartment measures *4.25 x 3.1 x 2.1 inches High quality urethane finish. Stamped with Oka-san's hanko.