Reliable Quality : Come with a puzzle board with colorful russian blocks of different shape blocks. The overall size of the board puzzle measures 10.63 x 7.08 inches. Made of 100% natural wood with non-toxic water-based paints. All pieces have been sanded smooth. Development of Skill: Kids can play with this jigsaw puzzles on her own or play together with parents. This tangram puzzle is helping with fine motor skills and problem-solving skills, hand-eye coordination, attention concentration. Great fun for family and school, keeps the kids busy for hours. How to Play: There are 11Pcs colorful blocks with 1 board, It can be put together multiple ways, kids need to learn to go back and rearrange parts to get the blocks all to fit. but kids can get it wrong so they need to think to shift things around to get them to fit. Creative Brain Toy: This is a Traditional teaching mathematics in a jigsaw puzzle. There is no age limit, both adults and children are suitable. Other than can help