Gold Spikes Studded Punk Spiky Round Curved Stud Earrings by LoveyLovey Style : Stud Earrings. Material : Aolly, Brass Back Finding : Post with friction back / Hypoallergenic and Titanium Needle Pin. Size : Width - 0.6cm(0.2") / Length - 2cm(0.79") Weight : 0.2oz (3.3g*2) (Approx.)