SURGICAL STEEL is the material of this Ear Gauge Earrings. The implant grade 316L Surgical Steel is Bio-Compatible, CORROSION RESISTANCE, EASY TO CLEAN. SIZE MEASURED before we send these Gauged Earring to you. This means you can be sure your KW2 will be a perfect fit. FRACTIONALLY SMALLER single flare Ear Gauging design is more comfortable for new sizes or newly stretch ears. RUBBERIZED O-RING give you confidence that these Earrings Gauges will stay securely in place. YOU WILL GET Two pieces of 316L Surgical Steel Ear Gauges Single Flare O-Ring Black . There are 5 gauges for your choice; 2g (6mm),2g (7mm),0g (8mm),00g (10mm) and 1/2 inch (12mm). They are safely store in satin pouch or jewelry box.