MUTCD compliant traffic safety cones. 80% of the cone weight is in the base to make it more stable than any 7 or 10-lb PVC cone. Lesser chances of getting knocked over even in high traffic areas. Constructed from low density polyethylene for better durability. 80% recycled material qualifies for Green Points. PVC cones won? crack in low temperatures down to -40°F. Stands tall even in the hottest weather - no more soft, droopy cones. Retains color longer compared to other cones. Patented Easy Grip Groove handle provides easy release for quicker placement. Base and stem are removable for easy replacement. Black square base measures 15-3/4"h x 15-3/4"w. Three cone heights available: 18", 28", and 36". Available in 3-lb, 7-lb, and 10-lb base options. Available with or without reflective collar. Made in the USA. Sold per piece.