... CulturedMaterial TypesAbalone, Awabi, Akoya, Agoya, Banana, Black/Brown/White Mother of Pearl (MOP), Mussel, Paua, River, Trocas, ... holes may be round or square;Special FeaturesOf Natural Luster, Natural Shining, Environmental and Friendly;Advantage of MWCustom- ... Buttons (Chinese); >Troca / Trocas / Trochus Shell Buttons; >White / White lip (Yellow/Gold) MOP (Mother of Pearl) Shell ButtonsPackaging ...