This is the standard 1.6cm g Industrial Strength 316LVM ASTM F-138 stainless steel single flared eyelet with a black PVD diamond-like carbon coating. All gauges except 8g are grooved and include one black o-ring. The wearable distance between the flare and the o-ring is 1cm . While the picture shows several eyelets to show you the jewellery from all angles, you are purchsing a single eyelet. Sold individually; order two to receive a pair.