Multi-function collar stays size:2.0" 2.5",2.75",3. ... 1.0 mm Plating:gold,silver,black, engraving logo Specifications: Multi-function collar stayssize:2.0" 2.5",2.75",3.0 ... items, please provide us with your logo in JPG or PDF File, and if you have your own designs, please don ... you ,also pay highest attention to your design and copyright! Multi-function collar stays