Features1Adopts natural and high quality wood material, safe and firm, stable and durable for use. 2Rounded corner grinding process, the edge surface is slick without burrs, won't hurt skin. 3Exquisite design, twists and turns of the labyrinth line, there are small rolling balls, two control knobs are the tools you manipulate. 4Help exercise hand?eye coordination and develop left and right brain, exercise balances ability. 5An unique and interesting board game, cultivate observation and concentration ability, perfect gift for friends.SpecificationCondition: 100% Brand NewItem Type: Maze GameMaterial: WoodProduct Size: Approx. 27.5 x 23 x 6cm / 10.8 x 9.1 x 2.4inSteel Ball Size: Approx. 0.95cm / 0.4inFunctions: Left and right brain development, exercise balances ability, observation and concentration abilityHow 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 List1 x Maze 2 x Ball