US Weight ChainBoss Black Fillable Crowd Control Plastic Stanchions With 10' of Plastic ChainBuilt to withstand the demands of the toughest environments, the US Weight ChainBoss can be used both indoors and outdoors. Made in the United States, the ChainBoss is equipped with features perfect for safely controlling crowds, directing the flow of foot traffic, or protecting a closed area for construction or cleaning. The ChainBoss features patented Integrated Chain Storage system, so chain is stored inside the post when not in use for incredible