Stainless Steel Collar Stays, 65mm x 3/8'' (9.5mm) Collar bones, high quality sets. Metal Collar stays, Embossed / ... ",5/32",1/4",5/16",3/8",1/2",9/16",5/8" (4mm,7-16mm (1mm increment)Length:From ... , looking crisp and remaining in the correct place. 65mm x 9.5mm Stainless steel collar stay