An Sterling Silver wire is spun in an open spiral and flattened. The post earring is adorned with a Sea Glass shard. Variation in glass shape and slight color difference is not a mistake, but indicative of a handmade product. Shown in Lime -- other colors available. Our handmade products are proudly made in the USA at our award winning studio. We feature cultured glass and Harmony Metal, which means all of the silver used is recycled metal. EcoSeaCo Jewelry is Upbeat, Uplifting & Upcycled!