HEAVY DUTY PLASTIC STANCHION 4 PCS SET (BLACK) + 50' BLACK/YELLOW CHAIN, CROWD CONTROL CENTER Made from high density polyethylene Black finishes + 50' BLK & YEL plastic chain One piece domed base design with easy access lid to add on weight Light weight, easy transport and no additional tool needed to assemble Add either water, sand, pea gravel or pebble stone for stability