Perfection Chain Products 33011 #14 Single Jack Chain, Bright Galvanized, 50 FT Carton The wire diameter of this chain is #14. The wire diameter of chain is the thickness of the wire used in each individual chain link Manufactured from steel wire for strength and durability Raw wire that has been zinc plated for corrosion resistance prior to being manufactured into chain The working load limit of this chain is 16 lbs. The working load limit of chain is the maximum load or weight that be held by the chain Made in the USA