Elaments Design Agate Tiger Eye Collar Necklace Fibonacci Design Fits Neck Sizes 13.5-15 Inches Metal is hand hammered and textured solid brass with no plating. Removable stone pendant is Black Agate and Tiger Eye wrapped in Solid Brass. Lays flat and is easy to adjust - 2 Parts with removable pendant. Pendant is 2.75 inches long x 1 inch wide x .25 inches thick Polishes shiny to a brillinant gold tone with your favorite polishing cloth for a life time Designed and created by a single artisan in the USA Created from bare wire with no plating or plastic coating so you can allow them to patina into an organic antiqued look or polish them to keep bright and shining