Children master 10 shapes and 10 colors…with handy, double-sided flash cards that provide learning fun for everyone! On front, each flash card has a shape, a solid color or a group of real-world objects representing a shape or color. On back, the card has the matching color or shape name. The set includes 56 durable cards—51 flash cards (including one customizable blank) and 5 activity cards—each with quick-sorting, rounded corners. Cards measure 3 1/8" x 5 1/4".