Made from substantial 100% High Density Polyethylene. The sustainabiliy of this furniture cannot be outmatched by any other casual furniture product. Cleans with soap & water, never needs paint or stain. All hardware components utilize stainless steel and aluminum alloys, combined with heavyweight construction to endure years and years of sun, wind, rain & snow. Soldura material is UV stable, environmentally friendly, recyclable, and offers a 5 year warranty for material and one year warranty for workmanship. It will not rust, splinter, crack or peel. due to the size of this item it is shipped knocked down for simple setup. All necessary instructions and tools are included with each ottoman.