When a double take just won't do —you won't be able to stop looking at this subtly sparkling flat back stud!  A Cords Club exclusive, we designed this flat back stud from scratch. We spent months perfecting the size, weight, prong setting, dimensions, and color of this gorgeous stud! This listing is for a single ASTM F136 implant grade titanium push-pin flat back stud. Measurements:  18 GA (1mm) Post is 1/4 inch (6mm) in length, with a 4mm disc on back.  Approx. size of front piece is 4.4x1.2mm Refer to listing images to get an idea of the size of the stud on-ear. Check your own ear measurement before ordering Materials: 18K PVD Gold Plated Titanium, Titanium, zirconia Care: Water and tarnish proof with proper care. If exposed to salt water, chlorine, or lotions/perfumes, rinse off with cool-warm water and gently dry. When not wearing, store in a dry, cool place. Do not pull, twist, or tug on your jewelry.