14kt Threadless Starburst Design with 3 3mm Marquis Shape CZ's Top is made of solid 14kt nickel free Yellow Gold with durable 316LVM ASTM F-138 Implant Grade Steel Pin designed to be practical and easy to use. Fits all sizes of pins and bases in our threadless body jewelry line. Pin Gauge: 25g, Decoration part: 9mm (L) x 9.8mm (W) x 1.7mm (H)