Product width 5 cm.Material Copper.Metal type Copper.WHAT YOU GET--6 Pairs of Cufflinks and Comes with an Elegant Gift Box, 6 Different Styles in Round and Square 2 Shapes. All in Gun Black. Perfectly Matches Almost Any Suit, Makes You Look Formal Every Day.EXCELLENT WORKMANSHIP--Each Cufflink is Well Crafted. High polished to ensure good color plating. Wonderful Electroplating Workmanship, Lasting Color Retention; Classic Gun Black, Gives You a Professional Look.BEST MATERIAL--Made of Copper, Resistant to Corrosion and Tarnishing, Not Easy to Lose Its Shape, Safe for Any Sensitive Skin.PERFECT GIFT--A Good Choice to Send Your Husband, Boyfriend, Father or Groom as a Stylish Gift on Various Occasions: Valentine's Day, Christmas, Anniversary, Engagement, Party, Meeting, Dating, Wedding, Daily wear, etc. Care Tips for Your Jewelry: 1. Keep away from chemicals, sweat, bathing, impact to prevent any damage. 2. Rub your jewelry with tissues to restore its shine. 3. Store your jewelry separately to avoid scratching.