These are natural shell buttons (black butterfly, round top). * 50 pieces for 799 yen * Also available: 30 pieces for 699 yen The black butterfly shell has a unique rainbow color that changes depending on the light and viewing angle. The genuine texture is different from ordinary polyester buttons. Used in brand products. ☆ Spare buttons are included in case any break during shipping. #buttons #shell buttons #accessory parts #handmade #bulk sale