The 16ga has a 3/8"(10mm) diameter and comes with 4mm balls

This Implant Grade Titanium labret has an internally threaded moon top

It has a 10mm flower white CZ gem threadless top and it comes in 3 different gauges with 2 different lengths

1/4"(6mm) (Short)

Titanium Gold PVD White CZ Internally Threaded Crescent Moon Labret Flat Back Length:1/4"(6mm) The 16ga has a 3/8"(10mm)Price Per Piece This Implant Grade Titanium labret is gold PVD plated and has an internally threaded moon top, complete with a gem extension and additional gems along the crescent moon shape. Its flat back design ensures comfort when worn in cartilage helix piercings. Material: Implant Grade Titanium * Ti 6AL4V ELi ASTM F 136 Plating: Gold PVD Gauge (Thickness): 16ga(1. 2mm) Lengths Available: 1 4"(6mm), 5 16"(8mm) Internally Threaded Top Measures 7.