Mother of Pearl Buttons with Shank 150 Pcs. 1/2" #18 #3 Quality * 150 mother of pearl buttonswit shank on the back * Sewing , Crafts and Design *Home Decorating, arts and crafts * Size 1/2" #18 ---smotth top Buttons made from genuine shells #3 quality - # 3 quality (some Imperfections or chips)