Material Type - 14k Gold Clasp Type - Lobster   Length - 7.0 IN Avg. Weight - 1.8 Gr. Length - 16 IN Avg. Weight - 3.5 Gr. Length - 18 IN Avg. Weight - 3.8 Gr. Length - 20 IN Avg. Weight - 4.4 Gr. Length - 22 IN Avg. Weight - 4.8 Gr. Length - 24 IN Avg. Weight - 5.1 Gr.