These simple beautiful rings are handmade of Argentium Silver. Fully adjustable and stackable. I can adjust if your prefer just add your size to the special instructions at check out. But, what say you "Argentium Silver"? Yes, Argentium Silver is a modern versions of sterling silver that is more pure silver. Its unique combination of metals gives it a natural brightness that makes it outshine gold, platinum and traditional sterling silver. With a tarnish resistance , durable finish that is free of any plating, argentium won't chip or crack. It's these qualities that make argentium an appealing choice for jewelry. Averaging 97% silver versus 92.5 in traditional sterling.