Provide exciting and educational activities for your early learning or home environment with the ECR4Kids Manipulative Mania - Set 1. Children will challenge themselves to construct sky scrapers, animals, and more with the four different manipulative collections. Sets encourage the development of hand-eye coordination, motor and basic math skills. Each group of manipulatives is packaged in a clear tub with convenient lid and handle that stack to save space. Manipulative Mania - Set 1 is comprised of the following: Silly Star Connectors(ELR-19201), 3-D Building Blocks(ELR-19202), Criss-Cross Connectors(ELR-19203) and Totally Tubular Pipes and Spouts(ELR-19204).