This item is well made of natural wood for durable and practical use with no harm to children’s health. You need to get these blocks all back together on the board with no spaces. It encourages problem solving and creativity since it can be solved so many different ways.It is great for recreation, entertainment, parties, and parent-child bonding time. Features - - Material: Wood. - Size: 13.50X13.50X1.00cm/5.31X5.31X0.39in - Includes . - Provide hours of fun and educational play, begin developing your child’s spatial-visualization skills. - Aims at develop his mind and imagination, exercise his ability eye-hand coordination and color shape recognition etc. - Instruct baby thinking ability and exercise baby conversion relations, understanding, reasonable collocation blocks space imagination. - Great fun for all the family, keeps the kids busy for hours. Package list: 12 pcs Hexagon Tangram Jigsaw Puzzles Wooden Puzzle Games Brain Puzzles For Kids