Necklace made from the neck of a recycled bottle and given a seaglass style finish in our studio. Finished with an 18 inch sterling silver chain. Glass is approximately 1 inch in diameter. Patented. • Clear from beer or wine bottle • Antique Clear from Coca-cola bottle • Aqua from a sake bottle • Cobalt from a vodka bottle • Lime from a beer or water bottles All Smartglass Jewelry purchases come beautifully boxed with an artist card, handcrafted and recycled story, and bottle key card included.