This barrier is structurally sturdy and lightweight with durable drain plugs. It comes with screw-on fill caps and lids and is compatible with square bolt-on or round screw-in lights. These barriers are can be easily relocated and are easy to set-up and stack for great height and visibility, lowering labor costs and equipment needs. They are impact resistant, UV and long-term fade resistant for long lasting visual appeal. The barriers are ballastable with water or sand with pre-molded attachment areas for lights and flags. All barriers are composed of recyclable material.