Explore shape, size, comparison, spatial reasoning, patterns and designs using these brightly colored plastic geometric puzzles. These geometric shapes will stimulate every child´s imagination. Tangrams provide 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: Set of 4; one 7-piece set each in red, yellow, green and blue (28 pieces total). Warning Choking Hazard Small Parts not for childern under 3 years. Ideal for grades K-8 and ages 5-12. Each individual set contains 28 pieces, Bundle of 6 sets, 168 pieces total.