Pop It. Is a super shiny finished that is hand hammered is made even better by this Oversized Button Stud earring. This is a very light earring a. The highs and lows of the earrings give the look of shine and matte. Hypoallergenic, Waterproof, LeadFree, Nickel Free. Silver plating and genuine gold plating PVD over steel. Surgical steel post and butterfly back. Leaver back Closure over the post keeps the earring facing forward and flat. These are hollowed out and not heavy.