Sheila- The Duo Wave Pave Wave Retro Button earrings. Is a super shiny finished with drilled out Pave wave all the way across it. This is a a comfortable earring. The highs and lows of the earrings give the look of an 80's Button that Wraps. Hypoallergenic, Waterproof, LeadFree, Nickel Free. Genuine gold plating PVD over steel. Surgical steel post and butterfly back. Hand drilled and set clear foil back crystals Leaver back Closure over the post keeps the earring facing forward and flat. These are hollowed out to take out some weight.