I HAVE HUNDREDS OF TIE TACKS, TIE BARS AND CUFF LINKS. cuff links: 0.58" x 0.58" (9/16" x 9/16" or 14.5mm x 14.5mm). collar bar: none. tie tack/bar: none. I always try to point out any clear blemishes and condition.
This product would be a great fit for those looking to add some vintage charm to their cuff links while also utilizing high-quality rhinestones to stand out.