1200X1120mm Waterproof WPC Material for Garden Railing 1.waterproof 2. against-UV 3.Size: ... 70x70mm,90x90mm,100x100mm,120x120mm 1200X1120mm Waterproof WPC Material for Garden Railing Sizes:70x70mm,90x90mm,100x100mm,120x120mm,140x140mm,200x200mm48x20mm, ... is WPCSinywon WPC(Wood Plastic Composite) is mainly made of natural fibers and plastic(main HDPE), and antioxidant,UV stabiliser, lubricants, ...