With over 25 years of experience, as creator; eWonderWorld set the standards for foam mats and foam blocks. Unlike many competitors mats and blocks that are made in China, ours are made in Taiwan undergoing & passing all tests for safety. Building blocks promote motor skills, color and shape coordination, and sensory learning. Our blocks can be used in classrooms, daycare centers, play room and even in bath tubes for hours of play tub fun!