Built to withstand the demands of the toughest environments the US Weight ChainBoss can be used both indoors and outdoors. 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 convenience. Then easily pull the chain out of the post using the twist-lock top which allows for easy chain disbursement. Each 37.88-inch tall post includes 10 feet of all-weather molded high-tensile strength 2-inch plastic chain. The ChainBoss features a durable scratch-resistant high-density polyethylene base that can be user filled with sand or gravel. On the bottom of the base are no-skid non-marking rubber feet keeping the post in place even during rough use. No tools are required for assembly. The Easy Connect snap together construction between the post and base takes less than 5 seconds and is easy as 1 2 3. Easily customize the stanchions to fit your need with different post colors and several chain options to choose from. Also choose from factory prefilled weighted bases or user-fillable bases. The ChainBoss is only compatible with the U2513 Sign Holder to advertise signage (sold separately). US Weight located in Olney Illinois delivers all-weather durability and excellence with the ChainBoss.