Implant grade titanium opal cabochons for 14g/12g internally threaded jewelry with various stone sizes and colors. Top of navel/belly jewelry or "floating navels" Top of microdermal or surface piercings Top of tongue piercing barbells Top of any 14g stud for earlobes, conches, helixes & more! Requires 14g threaded post for wear (not included) Price per 1 opal (if you need more than one opal, please add the desired quantity i.e. 2 for a pair)