This 90-piece set of WEDGITS™ was designed around the developmental requirements suggested by the teacher market. Within the plastic storage box are six 15-piece sets of WEDGITS™. Each 15-piece set is a solid color that differentiates this product from the other product line items. A set of WEDGITS™ Design Cards, an Activity Guide and a WEDGITS™ Jumping Frog design poster are included to support classroom activities. (Classroom K thru 5th and Family Use)