Gold Tone Open Heart with Nurse Hat Clip On Earrings. Gold Tone Open Heart with Nurse Hat is approximately 0.68 x 0.71 x 0.13 inches (HxWxD) not including loop. Smooth shiny Gold Tone on back. Plated Earrings Clips are 15mm without dangle. The hinged earwires have an adjustable screwback to customize your fit. Also available for pierced ears. PLEASE NOTE: Our products are lead safe, but are not intended for children 14 years and younger.