Tangrams - Class Pack - 30 Sets - 210 PiecesExplore shape, size, comparison, spatial reasoning, patterns and designs using these brightly colored plastic geometric puzzles. These geometric shapes will stimulate every child's imagination. It provides a fun way for children to explore geometry, shapes, colors, patterns and designs. Tangrams come in four bright colors made of durable, washable plastic made to last for many years of play. Includes: 30 sets with storage jar with lid (210 pieces).