Men's Silver/Green OpalButton Cover Cuff-Link With Crystal Stud Centered Surrounded By Crystal Studs HOW DOES IT WORK? Our button covers will fit onto almost any standard shirt simply open the base, slide under the button and close into place. That's it. 18 mm covers are similar in size to a dime and can be worn on a shirt cuff or collar; 15 mm covers can be used as shirt studs but are 5 mm larger than traditional studs. IDEAL GIFT: Each purchase includes one pair of button covers. Surprise those you love on Birthdays, Christmas, Weddings, Graduation, Anniversaries and Father's Day with a gift that is simple, elegant, and completely unique. Whether you're going to a wedding, formal events, or looking to make an impression at a business meeting; Our cuff links and studs will make your groomsmen, boyfriend, father, and husband look great. 100% MONEY BACK GUARANTEE: People love our button covers. but, just in case, you can return your purchase for any reason for a 100% refund. Get in touch and we'll reply to all messages Within 24 hours. ABOUT US: Every product is carefully crafted to ensure that you receive only the highest quality items.