HASSLE FREE USE: Attach our button extenders to your shirt or pants, connect the other end to the pants button slot, NO need to sew. Making your shirt much more comfortable to wear. . SUITABLE SIZE: Extended button size is about 10 mm/ 0.39 Inch in diameter, specifically designed to fit shirt, dress, coat, collars and so on. Could easily adds an extra 1.5 -2 inch to your pants. . ZINC ALLOY MADE: The neck extenders are made of high quality zinc alloy mainly, which is durable and you can use them for a long time. . WIDE APPLICATIONS: Our extenders buttons are ideal for women and men, teens and adults, could use in most pants, regular pants, jeans, women pregnancy pants. . WHAT YOU GET: 3 pieces black collar extenders, 7*24 customer services, 10 YEARS WARRANTY. If you have any questions, please feel free to contact us. .