Discover 18K Reversible Solid Two-Tone Gold Small Smooth Contours Huggie Hoops Earrings. These versatile earrings boast a 0.50-inch diameter (12mm) and a slim 0.12-inch profile (3mm). Crafted from hypoallergenic 18K gold, they're a perfect gift for girls aged 4 to 16, and each pair comes with an Amalia Gift Box and Bag.