Material：the button extenders are made of quality zinc alloy with metal spring, durable and sturdy.Size: the wonder button extender measures about 1cm/0.38 inch in diameter with the loop length of 1.2cm/0.47 inch, can extend the length for about 1cm each.Comfort & Economic: this metal collar extenders set is the best solution for your tight clothes, like shirts dress trousers, pants and more, give you more breathable space and comfort without throwing your favorite ones away.Easy Use: just loop the extender on the exited button as placement, if it still tight for you, more button extenders connection is recommended!Wide Application: perfect for shirt, dress, trouser, coat, collars, pants, etc, it is a little stretchy and use super conveniently! What will you get in one set? You will get 12 pieces of white alloy button extenders with high quality. The loop measures about 1.2cm/0.47 inch long and the button measures about 1cm/0.38 inch in diameter. Best Way to Solve Your Problem About the Getting Tight of Your Favorite Clothes! Still struggling to throw away your favorite clothes away when it get a little tight for you？ Now, you do not have to. With our metal collar button extenders, you can wear it comfortable and breathable. Apply these extender buttons on your existed ones in the collar, cuff, pants and more and extend the length a bit. Very easy and convenient to use!