The threadless trinity cz end is made from high polish implant grade titanium (ASTM F136 6AI-4V ELI) by NeoMetal Body Jewelry. It has a 25g pin that is compatible with most threadless jewelry brands. Choose your size and cz color below. NEO-XTRN-1.5height: 3.3mm, width: 3.8mm, depth: 1.2mm3x 1.5mm CZs NEO-XTRN-2height: 4.2mm, width: 4.8mm, depth: 1.6mm3x 2mm CZs You'll receive the end only. NeoMetal barbells are sold separately. These might not be compatible with threadless parts from a different maker.