This Black PVD ASTM F136 TitaniumInternally Threaded Top is perfect for those looking to customize their body jewelry with a unique, sophisticated style. It has abezel setting and comes with a choice of gem sizes: 2.5mm, 3mm or 4mm. This top is sold individually andis size 16G with M0.9 threading.The Clear CZ gem is the perfect finishing touch for a modern, fashionable look.