As basic as your white tee (seriously)! Handcrafted in hollowed 14k solid gold, these are our lightest hoops ever. Wear them all day, everyday - even while swimming, just remember to take them off before sleeping. Original packaging included. - Outer Diameter: 18 mm - Hollowed 14K gold From Mejuri: When properly cared for, our 14k gold pieces can last forever. With its beautiful, subtle hue, you can wear your jewelry every day, everywhere. All of our 14K product is made from 94% recycled material. Our 14k white gold pieces are finished in rhodium plating, which gives them extra shine and durability.