Check out this pair of half inch long stainless steel, 18 Gauge earrings(diameter measures around .12 of an inch), each adorned with the Captain America symbol These Captain America earrings are made from super-high-quality material and the result of expert workmanship. No, AIM had nothing to do with these. Now, how about a lesson in some subcutaneously placed, surgical steel body jewelry specifics: 316 Stainless Steel is the preferred steel where bio-compatibility is required (such as body implants and piercings). The "L" means that the carbon content of the alloy is below 0.03%, which reduces the sensitization effect. 316 steel has .08 Max carbon content while 316L has a .03 Max carbon content. Stainless steel does not contain, corrode, or rust as easily as ordinary steel. Though it will not oxidize or turn black, it is still not "stain-proof." We cannot accept exchanges and refunds on body piercings. That stuff was in your body Ewww All sizes are US sizes.