1. Eco-friendly, non-toxic, odorless, durable 2. Flexible, cold & heat resist, easy fixing 3. GOOD PRICE, GOOD QUALITY! The PU warning posts are made of a new eco-friendly BPU raw material, which is odorless, high flexible, and cold & heat resist.The advantages of the PU warning posts are:Temperature resist - not easy to crack even in the hot sun or in the cold snowFlexible and durable - can ...