Takashima 50pcs Natural Shell Buttons Set, #00017 11.5mm(7/16'')5kinds of Natural Shell Buttons Made in japan These buttons are made of genuine natural shell Sold in set of 50 buttons(10pcs trocas shell,10pcs white mother of pearl,10pcs black mother of pearl,10pcs brown mother of pearl,10pcs akoya shell) Buttons for shirts,blouses