All of our necklaces are available in specific chain lengths, which can be found in the description of the one you have in mind. All necklaces come with a spring ring clasp. All 18" chains will have a 16" stationed jump ring to allow the necklace to be worn at either length. Necklace chain length cannot be customized. To determine how the necklace will fit, we suggest using a string cut to the same length, and tying it around your neck to see how the length looks on you.
