Designed to add a personal touch and make a bold statement, perfect for gifting on special occasions like friends' birthdays and weddings, or as a personal keepsake. They make an excellent groomsman's gift! Materials: Real 18k Gold Over 925 Sterling Silver or Waterproof Surgical ...Designed to add a personal touch and make a bold statement, perfect for gifting on special occasions like friends' birthdays and weddings, or as a personal keepsake. They make an excellent groomsman's gift! Materials: Real 18k Gold Over 925 Sterling Silver or Waterproof Surgical Grade 316L Stainless Steel (Read More) Cufflink Size: Varies by Initial(s) Selected, About 18mm for 2 Initials...