Aluminum collar stays size:2.0" 2.5",2.75",3.0" width:10mm, thickness 1.0 mm Plating:any color you like, engraving logo Specifications:Aluminum collar stayssize:2.0" 2.5",2.75",3.0"width:10mm, thickness 1.0 mmPlating:any color you like,engraving logo Jewelry Type: Stainless steel collar stays Material : 316L S.Steel , 304 S.Steel, Titanium,Workmanship: highly polished by hand Quality grade: AAA+ ...