14kt White Gold BioPlastic FLAT Star - addon
The 14g and 16g BioPlastic Labret Shaft and 18g Nose Screw all have the same size hole. So you can interchange all the parts that are available for BioPlastic.
This works for both 16g and 14g Bioplastic Posts and 18g Nose Screw.
FLAT Star measures 2.75mm
Options are endless.