1)No cracking 2)Water and corrision resistant 3)Dimension stalbility 4)No poisonous With new green materials , ... forest resources3). Capacity of UV-resistance, and color stability4). Moisture/Water resistant5). Barefoot friendly, anti-slip, less cracking, less warping,6 ... , low maintenance,customer just need water or use the brush to clean the product 7). Weather resistant, suitable from minus 20 to ...