top and bottom rails of railing systerm, wood plastic composite decking, easy to install and maintenance, ... ,brown,dark brown,gray,light gray,light yellow,coffeeMaterial: Recycled PE powder + Wood/Bamboo fiberMain features of WEAR WELL WPC:1 ... . We mix the natural fiber (bamboo/wood powder) with recycled PE into a strong, moisture-resistant composite, it is engineered to ...