Use with Plastic Stanchions (sold separately). Chain is rustproof and ideal for use outdoors to control crowd flow or as an economical indoor option. Chain threads through post head and is easily snap-locked in place with ball top. Chain may be cut to size as needed. Stanchions and chain are sold separately. Tatco Plastic Stanchion Chain, 40ft., White is one of many Stanchions available through Office Depot. Made by Tatco.