COMFORT BREATHE EASY: Those neck extenders are can made your shirts more comfortable to wear and save money from replacing too tight neck shirts, While your weight fluctuates a bit. EASY TO USE: Simply attach stretch collar extenders to the existing button on the shirts gives you quick extra space, it's perfect to use with tie. PREMIUM HIGH-QUALITY :These button are made of environmental protection plating and ultra-durable zinc alloythe top quality can help you reuse it EASY TO MATCH: There are 3 colors to match with different clothes, Black, white, and silver to choose from.It's easy to match your shirts skirt or jeans. PREMIUM BUTTONS: The size of the button Just 10mm (3/8) in diameter, its a 12-pack collar extenders. you will receive 4pcs white, 4pcs black and 4pcs silver. Description Neck button extender gives you quick extra space in your collared shirt with no sewing within seconds And expand your dress shirt collars to make them more comfortable to wear and save money from replacing too tight neck shirts. Its easy to use, just attach the spring loop to your shirt collar's existing button and then put the other side of the extender(the button part) through your shirt's button hole In a few seconds you've got an elastic extender that will keep you comfortable while still looking sharp! Package 12 Pcs Buttons Extenders Color:balck, white,silver