*The Wood mosaic (Yosegi) patterns of top and bottom panels are differed by each puzzle boxes. T he color of side panels "ichimatsu yosegi" may vary from photos. Opening method of the puzzle box : 27 steps Moving panels and Slide keys : have 4 panels / 2 keys Outside size : 4.5 x 3.2 x 2.1 inch (115 x 82 x 53 mm) Inside storage space size : 2.80 x 2.59 x 1.14 inch (72 x 66 x 29 mm) High quality urethane finish. Comes with opening instructions and Gift Box!