Minimal, sleek and curvaceous, the Cora Studs mimic the playful shape of an air bubble suspended just beneath the surface of the sea. Cora reflects light beautifully, bringing the perfect amount of attention to the feature presentation - You. All BIKO pieces are plated in 14k gold or rhodium, over brass. They do not tarnish or cause discolouration on the skin. All earring posts are surgical stainless steel, and hypoallergenic. For increased longevity, keep jewellery clean and dry using a soft cloth. Avoid wearing your jewellery in the shower or during exercise, and wear after applying perfume or hairspray. Protect your piece from rain and humidity. When not wearing, be sure to store inside a jewellery box or soft jewellery pouch, such as the pink branded BIKO pouch provided. Wear your BIKO jewels often, and love them always.