... material, ECO-friendly . Shape Agoya Shell Button . Laser logo is available . Dye to MatchButtonsresin buttonMaterialNatural Seashells, ... , Paua, River, Trocas, Trocas, TrochusButtons StylesHoles, Self-shank, Brass eyelets, Laser logosProduction ProcessSelecting, Embryo Extracting, Grinding, Perforating, Bleaching, ... (French);Thickness1.5mm to 4.5mm thick; self-shank trocas or white MOP shell buttons, ...