The MUTCD Compliant 18" Enviro-Cone is 80% recycled by weight and can be recycled again if the cone is destroyed. If ever a stem becomes unusable, simply reorder the stem and reuse the base, no need to buy the entire cone! No more land fills loaded with toxic PVC cones! With more than 50% of the Enviro-Cone being made of recycled materials, it qualifies for Green Points. Manufactured from low density polyethylene, which provides superior cold weather performance and increases the life span of the Enviro-Cone. The Enviro-Cone does not crack or break down to -45°F. Even in the hottest weather, the Enviro-Cone stands tall and vertical. No more soft and droopy cones in hot weather! The Enviro-Cone provides long term durability with excellent color retention through the use of UV Stabilizers and low density polyethylene plastic. With its patented Easy Grip Groove handle, the Enviro-Cone provides excellent "gription" for quick deployment and retrieval. The grove makes tying off caution tape quick and easy. Did You Know? 80% of the weight of the Enviro-Cone is in the base? This makes it more stable than any 7 or 10 lb. PVC cone.