Product details Water resistant💧 Brass 24K gold Sterling silver post Handmade Hypoallergenic Nickel free Size: 37mm. Thickness 4.3mm. Closure: butterfly back Designer note this updated new design is going to be your new everyday hoop. The gold, sleek design will play up any outfit and add sophistication to your look. Style tip: wear our chunky tube hoops with our black crystal huggies for a complete ear party l