Native Treasure - 18" Blue Colored Coco Bead 3 White Puka Shell Necklace - 5mm (3/16") Standard 18" Length. Should fit up to a Size 16.5" Shirt Collar Size 5mm (3/16") Super Class 'A' Quality Shells and Real Wood Coco Beads. (not for water use) Hand-Crafted in Our Tropical Jewelry Shop by Our Native Island Artisans Includes FREE Stainless Steel Beading Wire Upgrade, Sturdy Twist-Barrel Lock 60 Day Breakage Replacement 100% Satisfaction Guarantee You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!