Feature 1Observation: Math puzzle board adopts comprehensive test of observation and reasoning skills. Although the game is simple, the number arrangement is ever changing. 2Spare Chess Piece: In order to avoid losing chess pieces sometimes, we specially prepared a set of 9 spare chess pieces in the package for you. 3Brain Teaser: This is an adult logical thinking desktop intelligence challenge blue sudoku, which is very suitable for exercising people intelligence. 4Ideal Gift: Blue math puzzle board is very suitable as a good gift for children, or as a surprise at Christmas and Halloween, birthday and other festivals. 5Wood: Logic math puzzle board is constructed with wooden material, environmental protection, health and durability, and can be used for a long time.Item Type: WoodenMathPuzzleBoardMaterial: WoodSize: Approx.24cm / 9.4in .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x WoodenMathPuzzleBoard