4 years & up. The perfect addition to support science, nature, life cycle, or creature units. Set contains 198 pieces, including eyes, fins, tentacles and beaks. The 8 two-sided 1:1 correspondence-building cards and Food Web Poster are perfect for young learners. Build up to 14 of the 18 models shown on the building cards at the same time. Includes a handy storage container for easy clean-up.