Collar Extenders for Mens Shirts: Due to the fluctuation of weight, many other parts of favorite formal shirts fit well, but the collar of the shirt will be very tight after being buttoned, which makes it difficult to breathe after wearing a necktie. This tie collar extender can easily solve this problem, and there is no need to spend money on a new shirt, just install a button extender on the top button of the shirt to extend the neckline, which is very economical. 5 in 1 Dress Shirt Neck Extender: Each box contains 18 Pcs of mens shirt collar extender with a diameter of 10mm. There are 4 black, 4 white, 4 silver zinc alloy elastic collar extenders, 3 black, and 3 white plastic collar extensions. Our neck button extender are designed in practical colors, you can choose the appropriate neck extension button according to the color of the shirt. Shirt Collar Extender by 1 inch: which adds an extra 1/2-1 inch of comfortable space to the neckline area of your formal shirt. With these dress shirt collar extender, your tie is no longer tight, you can breathe freely and feel comfortable all day. Simple and Beautiful: It only takes a few seconds to wrap the collar extension loop hole around the original button, which helps you to fasten your tie easily without tightening your neck. The shirt collar stretcher is hidden under the tie, so you can't see the secret under the tie at all. With the magic button for shirt collar, the shirt you like but don't feel good about wearing finally fits perfectly. Worry-free shopping: We are committed to providing customers with quality products and services. If you have any problems when receiving the products or using them, please feel free to contact us by email. Our after-sales team will give you a satisfactory answer within 24 hours.