EASY TO MATCHThe shirt collar extender is suitable for clothes of various sizes, and can be applied to shirts, dresses, trousers, skirts, cuffs, etc. It will help you to wear your favorite clothes and provide the most comfortable wearing experience.COMFORT AND INVISIBLEWhen your weight fluctuates a bit, those neck extenders are can made your shirts more comfortable to wear and no need to discard small shirt, save time and money. Our shirt buttons is small that it can easily be hidden under your tie without being noticed.PREMIUM MATERIALThe button extenders are made of zinc alloy material, lightweight, elastic and strong stretchability, durable, not easy to break, smooth surface, you can use them for a long time.PACKAGE AND SIZEYou will get 12pcs collar extenders for mens shirts (6pcs white+6pcs black). You can choose the appropriate neck extension button according to the color of the shirt. Meet your daily use and replacement. The size of the button Just 10mm/0.39" in diameter.EASY TO USESimply attach stretch collar extenders to the existing button on the shirts to add an extra 1/2-1 inch of the neck size, no sewing is required, making them more comfortable to wear, it's perfect to use with tie.