Unlike PVC cones, the Enviro-Cone is designed to withstand an impact with the tires of most vehicles. Manufactured from low density polyethylene, the Enviro-Cone® provides superior cold weather performance.  No cracking or breaking down to -40°F. Enviro-Cone provides long-term durability. Color retention is excellent through the use of ultraviolet stabilizers and low density polyethylene (LDPE) increases the life of the product.