【Large Capacity】: Comes with 18 pieces button extenders, they are enough to meet your daily use.【Material】: These collar shirt extender are made of environmental protection plating and ultra-durable zinc alloy. You will find metal collar extenders are very sturdy, rust-proof, smooth surface, metallic, giving you a sense of comfort and elegance.The top quality can help you reuse it.【Size】: Neck button extender measures 25*10*6mm/1*0.4*0.2inch approximately. The elastic spring fits your body well.【COMFORT ＆ BREATHE EASY】: Those neck extenders are can made your shirts more comfortable. Collar extenders for premium comfort and expand your dress shirt collars by ½ neck size to make them more comfortable to wear and save money from replacing too tight neck shirts. Also works great on a men's dress shirt or women's blouse as a cuff extender. Great for Shirt, Dress, Collars, etc. It can increase the length of 1 inches.【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. Product Description Metal Collar Extenders Do you feel lost when your shirt fits perfectly, but the neckline is too small to button? Do tight necklines make you feel more uncomfortable after a long day at work? Our collar extenders for mens can add extra space to your neckline. When wearing a formal suit or tuxedo at a work day, party, or wedding, the collar buckle can be worn easily and comfortably. The shirt collar extenders keeps you comfortable all day. Save you money on new clothes because the size doesn't fit. Easy to use Widely used In addition to extending the neckline space of your shirt, if you find the cuffs of your shirt too tight for comfort, you can also use our metal collar extender to add extra space for you. Expand neck space The Collar Extenders has a flexible spring design that adds approximately 1/2 of the size in the collar area of the shirt. With this elastic button extender, give your favorite shirt plenty of room or more.These button extenders are detachable and only take a few seconds to connect. Versatile and practical The collar extenders buttons can be worn with different shirts to help you easily match your tie. It'll make you feel good all day.