18" Length, Up to 10-12mm Class 'A' Quality Hand-Sorted Shells, Includes Stainless Steel Beading Wire Upgrade, Sturdy Twist-Barrel Lock.This classic style authentic tropical jewelry puka shell necklace is beautifully hand-crafted in our tropical jewelry shop by our own Native Island Artisans using hand-sorted, Super Class A; Quality Shells..... The shells have been individually hand-sorted to provide a soft, beautiful taper.....Genuine Shells Indigenous to the Powder White Beaches of the Philippines.Features Durable Stainless Steel Beading Wire and a Strong Grip Nickel-Free Twist Lock for an Easy, Secure, Long Lasting Fitting! .....Add a Hot Tropical Accent for Your Attire Now! Great for the Waves, the Beach, Work, School, Parties, Luaus, Vacations, Gift Giving, and just looking cool. .....Get Noticed and Delight Yourself with Your Fair Share of Compliments!