The following are lots of 10 buttons. New, off white, mother of pearl buttons made of plastic. 

They are sew-ins, fish eyes (two holes).

please pick  size   13/16 inch = 20mm, 5/8 inch = 15 mm, 1/2 inch = 12mm, and 7/16 inch = 11mm. 

Check out my store for more buttons and deals!