... shank Natural material, ECO-friendly . Shape Agoya Shell Button . Laser logo is available . Dye to MatchButtonsresin ... Paua, River, Trocas, Trocas, TrochusButtons StylesHoles, Self-shank, Brass eyelets, Laser logosProduction ProcessSelecting, Embryo Extracting, Grinding, Perforating, Bleaching ... #380#408# pearl buttons,jean button, button for garment,resin button,plastic button,buckle