Potomac Circle StudsMinimalistic with a touch of whimsy, the Potomac Circle Studs are perfect for everyday use or elevated wear. Crafted by hand using 100% certified recycled sterling silver and hammered by hand in the Tree or River texture, each set is shipped plastic free in a reusable and recyclable gift box. Every pair sold includes a $5 donation to the Potomac Conservancy, working to protect and rehabilitate the river and surrounding areas.