AZC-002 White Ceramic Zirconia Shirt Button, 10mm - Priced per Dozen
Standard Shirt Buttons Collar/Sleeve/Front - WAWAK Sewing Supplies
Amazon.com: ButtonMode Standard Shirt Buttons 22pc Set Includes 8 Shirt Front Buttons (11mm or 7/16 in), 7 Sleeve Buttons (10mm or 3/8 in) & 7 Collar Buttons (9mm or Almost 3/8 in), Blue Navy, 22-Buttons
Here's Why Men's and Women's Clothes Button on Opposite Sides | Smart News| Smithsonian Magazine
Shirt Buttons - Polkom Button - Polyester, Natural and Metal Buttons
How a Button Up Shirt Should Fit | Button Down Fit Guide - TMM