... (wood powder,bamboo powder,etc)10%additives(Anti-UV agent, Anti-oxidant,stabilizers ,colorants,and etc.)Surface treating ... appearance, low maintenance, long lifespan, no splintering Advantages1. Green ecological, Innovative technology, Lifestyle2. Elegant nature wood grain ... many years8. No painting, no glue, free maintenance9. Anti-slip, less crack and warp, barefoot friendly10. Good weather ability ...