Shortest Length is 24" and longest is 30" We have tons more pieces to list. Save us as a favorite seller and check back often. We love to combine shipping.  Just let me know you are looking at something else in my store and I will combine shipping on your invoice. Shell Necklace, Shell Necklaces, Fashion Jewelry Necklaces, Something Else, Fashion Watches, Jewelry Necklace Pendant, Gold Tones, Shells, Opal