This necklace is handcrafted from a cast of a snake vertebrae and stainless steel chain. We offer a lifetime guarantee that our chains will never fade or tarnish. Handmade High Quality Waterproof Scratch Free Length: 20 inch (50.8cm). Positively Conscious: We've partnered with Greenspark, a climate change program that allows MHART to plant a tree or remove one piece of plastic from the ocean for every purchase.