I HAVE HUNDREDS OF TIE TACKS, TIE BARS AND CUFF LINKS. cuff links: 1.19" x 0.89" (1-3/16" x 7/8" or 29.5mm x 23mm). 0.25" = 1/4" or 6mm - pretty small for standard button holes. 0.50" = 1/2" or 12.5mm - this is fairly large for standard button holes.
