... Tungsten collar stays size:2.0" 2.5",2.75",3.0" width:10mm, thickness 1.0 mm Plating:gold,silver,black ... , engraving logo SpecificationsTungsten collar stayssize:2.0" 2.5",2.75",3.0"width:10mm, ... thickness 1.0 mmPlating:gold,silver,black,engraving logo Jewelry Type: ... options: 18K yellow gold, Rose gold, blue , black ,gun metal plating,MOQ: 1000 pcs per sizeLOGO, ...