Features： 1、Adopts natural and high quality wood material, safe and firm, stable and durable for use. 2、Rounded corner grinding process, the edge surface is slick without burrs, won't hurt skin. 3、Exquisite design, twists and turns of the labyrinth line, there are small rolling balls, two control knobs are the tools you manipulate. 4、Help exercise hand?eye coordination and develop left and right brain, exercise balances ability. 5、An unique and interesting board game, cultivate observation and concentration ability, gift for friends. Specification： Item Type: Maze Game Material: Wood Product Size: Approx. 27.5 x 23 x 6cm / 10.8 x 9.1 x 2.4in Steel Ball Size: Approx. 0.95cm / 0.4in Functions: Left and right brain development, exercise balances ability, observation and concentration ability How to Use: Turn the control buttons on both sides to control the balances of the two layer inner grids, so that the steel ball rolls along and avoids falling into the trap until the end (the steel ball is only 0.95cm large, please play under parental supervision when children play). Package List： 1 x Maze 2 x Ball