Priced Per Piece ***Works with all of our titanium threadless top styles - not compatible with internally/externally threaded jewelry*** Material: Ti-6AL4V-ELi ASTM F-136 *IMPLANT GRADE* titanium Flat Back (Measures at 2.5mm) Gauges available:20ga (0.8mm) (very thin.. common for nose piercings or regular ear lobe piercings)18ga(1mm) (slightly thicker than 20ga)16ga(1.2mm) (common size for cartilage/tragus piercings used in tattoo/piercing shops) 14ga(1.6mm) (Very thick - occasionally used in conch, some lip/helix piercings, although not considered common) Lengths Available: 5mm (Very Short)1/4"(6mm) (Short)5/16"(8mm) (Medium)3/8"(10mm) (Long) 1/2"(12mm) - Available in 14ga only