Designed for ages 3 and up. This kit is designed with puzzle fun in mind. The youngster will enjoy constructing colorful pictures with the unit bars and reshaping them into a rectangle in the cavity of the tray. As a by-product the child will develop math oriented skills such as counting, matching, relationships, addition facts, sameness-equations, color recognition, hand-eye coordination etc. Each kit contains five picture trays and a number of blocks.