Native Treasure - 18" Polished Brown Chips Puka Shell Necklace Native Treasure High Quality - Standard 18" Length. MORE Sizes in Our Store! 9-12 mm Polished Super Class 'A' Quality Medium Size Real Natural Shells - No Paint Added Hand-Crafted in Our Tropical Jewelry Shop by Our Native Island Artisans Includes FREE Stainless Steel Beading Wire Upgrade, Sturdy Twist-Barrel Lock Exclusive 60 Day Free Breakage Replacement 100% Satisfaction Guarantee