Water Resistant💧, Brass, 18K Gold , Hypoallergenic, Nickel Free SIZE: 9mm inside diameter. 2.5 width DESIGNER NOTE These delicate huggies are designed with casual convenience in mind. Perfect for a first or second piercing, the Twisted Huggies are excellent for styling up or styling down your OOTD. STYLE TIP: Perfect for starting an ear party, layer with some mini pearl hoops and the Marine Ear Cuff!