Play is a child's most important work, and The Children's Factory continues to be the World Leader in Soft Play. Like all other Children's Factory products, this brightly colored set of products can be part of a soft play environment that provides a safe place for children to play. This Puzzle Square with Soft Nag Mat features molded polyethylene plastic for indoor and outdoor use. Engaging in the Puzzle Square helps stimulate the minds of young ones for accelerated brain development. UV inhibitor prevents color fade. The Puzzle Square is also interchangeable! Comes with built-in storage area. Children's Factory educational toys use only the best materials available.