... with shank Natural material, ECO-friendly . Shape Agoya Shell Button . Laser logo is available . Dye to MatchButtonsresin buttonMaterialNatural Seashells, Wild or CulturedMaterial ... , Paua, River, Trocas, Trocas, TrochusButtons StylesHoles, Self-shank, Brass eyelets, Laser logosProduction ProcessSelecting, Embryo Extracting, Grinding, Perforating, Bleaching, Gloss, Quality Control ...