PREMIUM MATERIALS: Unlike the imitation plastic products, our Collar Support are made of malleable metal covered in a non-skid material, that gives FIRMNESS and SHAPE to the shirt collar and more importantly; allows you to personalize your shirt collar in any way, NO ONE can offer you this versatility. Don’t require any magnets or glue dots and don’t require any alterations. | SELECT THE RIGHT SIZE: There are 21 metal collar sizes available in accordance to your needs. (Select your shirt collar size). The collar support is one inch smaller than the selected size, in order for it to hide better. For example, if the selected size is 16”, then the collar will actually 15” wide. | EASY TO USE: Once you have chosen your shirt collar size, the rest is a piece of cake! All our stiff collar stays are easy to use and adjustable to your personal style and comfort for opened or closed collar, and to the height, with high or low options. (See the second image). WORKS ON Polo, Casual, Button down & Dress shirts. | NO MORE SHIRT PROBLEMS: One of the best parts about the metal collar stays for men and women is that it fixes all the unaesthetic problems with your collar: open and sloppy collar, wrinkled placket and lack of support. (See the third image). | SIZE SELECTION: with a flexible measuring tape, measure your shirt collar or look for your shirt collar tag.