I cut the rings from the necks of recycled wine bottles, then tumbled them in salt water and sand to soften and smooth the edges. The colors are amber, cobalt, pale aqua, green and clear. You can remove one or more rings to change up the look or to match an outfit. On a silver tone chain with a lovely S-hook closure, your necklace will arrive in a gift box. The necklace is about 18" long, but I can add or remove rings to make it a bit longer or shorter, at no additional charge.