14Kt Threadless with Prong Set Multi-Clear CZ Triangle Shape 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; Dimension: 3mm (L) x 3mm (W) x 1.2mm (H)