Versatile modular system made of rugged, easy-clean polyethylene with UV stabilizers. This Indoor/Outdoor Activity Obstacle Course for kids is multi-functional with a tunnel, slope, bridge and stair blocks that securely join together, without connecting parts, for a variety of combinations. Rounded corners, textured surfaces and built-in stability add safety to this inviting challenge. The Wave Beam (purple) measures 47½" L. x 12" W. x 10" H. Floor space needed approx. 12' x 5'. 3 Year Guarantee. 6 pieces. Ages 3 - 6 yrs. Drop shipped from factory. Allow 4-6 weeks for delivery.