Necklace chains come in a variety of sizes, some are standard some are personal preference.
As a guide these are the usual lengths.
14 inch - Children and small adults
16 inch - Standard size chain, fits most people
18 inch - Standard size for ladies who prefer their jewellery slightly lower, fits all women
20 inch - Traditionally a mans length chain
22 inches and above - Longer chains for sweater jumpers and some holy medals
