Design truly refined jewellery with these 30mm Stainless Steel Earring Hoops (22 pk) . Ideal for custom dangle earrings. Add a rubber earring back for extra security. Stainless Steel is the longest lasting jewellery material in terms of shine because it does not oxidize, and is naturally one of the strongest jewellery metals. It is also can be worn by almost anybody because of its hypoallergenic properties. To maintain the metal sheen, clean with warm water and a clean cloth.