These safety barricades are durable, structurally sound and lightweight to make them portable. They have screw-on fill caps and lids and are compatible with square bolt-on or round screw-in lights. Their lightweight when not filled makes them easy to relocate, saving labor costs and time. They are impact resistant and flexible as well as UV and long-term fade resistant. The larger barriers accept fencing. Their durability makes allows them to be able to withstand tough treatment during installation and relocation. Once in place they are ballastable with water or sand. The barricades have pre-molded attachment areas for lights and flags. They are composed of durable recycled material and made to last and provide long lasting visual appeal. Quick installation and removal.