1. Eco-friendly, non-toxic, odorless, durable 2. Flexible, cold & heat resist, easy fixing 3. GOOD PRICE, GOOD QUALITY! The PU seat boards are made of a new eco-friendly BPU raw material, which is odorless, high flexible, and cold & heat resist.The advantages of the PU seat boards compared with the other materials: PU Seat BoardsMetal Seat BoardsWood Seat BoardsCharacteristicEnvironmental- ...