... natural fiber(wood powder, bamboo powder, etc)+ 10% additives(Anti-UV agent, Anti-oxidant, stabilizers, colorants, and etc. )Model No.: DIY- ... Water-proof, moldy-proof, prevents rotting and moisture, anti-acid, alkali and pest resistance6. Environmental friendly, fully ... many years8. No painting, no glue, free maintenance9. Anti-slip, less crack and warp, barefoot friendly10. Good weatherability ...