FIVE main COLORS for choice30% HDPE (Grade A Recycled HDPE)60% bamboo/wood fiber (Professionally treated dry bamboo/wood fiber)10% chemical additives. (Anti-UV agent, Anti-oxidation agent, stabilizers, colorants, coupling agent, reinforcing agent, lubricants...etc.) The main features of this material are as following: 1. High recyclable, eco-friendly, saving forest resources2. with the look of the natural wood but less timber problems3. Moisture/Water resistant, less rotten, proven under salt water condition4. Barefoot friendly, anti-slip, less cracking, less warping,5. Requires no painting, no glue, low maintenance6. Weather resistant, suitable from minus 40°C to 60°C7. Well done of Termites, insects, and moldy-proof8. Available in different colors9. Easy to install and cleanCERTIFICATE we achieved:*ISO9001*ISO14001*CE Certificate*Testing report issued by NATIONAL BUILDING MATERIAL TESTING INSTITUTE*Testing report issued by SHANGHAI BUILDING MATERIAL TESTING INSTITUTE*Testing report issued by INTERTEK, according to ASTM criterion