1.waterproof, 2.mothproof, 3.anti-deformation, 4.anti-flaming,non-checking, 5.non formaldehyde. Description WPC square timber size length: design according to customers need. color twelve available colors: Deodar color, golden wingceltis color, inferior to pomelo color , strong pomelo color, cherry color, red wood color ,congo red color ,purple wingceltis color,old wood color ,walnut color,black ...