12 x 20 Zinc-Plated Jack Chain with a Safe Work Load (SWL) of 29 lbs. Kit includes four 5/32″ zinc-plated S-Hooks! Be prepared for all kinds of installs. Whether hanging fluorescent lighting, small AV products or signage, KingChain Jack Chain is always good to keep on hand. Jack Chain is an excellent light-duty chain. Made from low carbon steel that is then zinc plated, this chain has a bright finish and will look good in any setting. Other common uses include crafts, art projects, hanging bird houses, etc., which do not require high strength. Do not use for overhead lifting. Never exceed the Safe Working Load (SWL).