Backless HDPE Adirondack Bench with Wood Texture, Poly Lumber Seat for Patio, Backyard, Balcony, All W2103P254593Recyclable materials We use recycled polystyrene materials to replace the ever decreasing wood. Bench made in this way is strong and Persistent, can withstand all kinds of weather, and will not chip, crack, peel or rot. Easy to Assemble The most simplified installation process, you only need to screw 4 identical screws into the pre drilled holes. The park backless bench is heavy. It is recommended that two people install it together. Low maintenance