Frame It All Two Series 4ft. x 11in. Composite Square Sandbox Kit with Canopy/Cover Eco-friendly timbers and joints are made from recycled plastic and natural fibers. No toxic chemicals. Low maintenance: timbers will not rot, warp, splinter or fade. Composite boards are made from 38% post-consumer recycled plastic and 62% sustainable hardwood fibers Canopy/cover made from waterproof polyester fabric