I HAVE HUNDREDS OF TIE TACKS, TIE BARS AND CUFF LINKS. tie tack/bar: 2.76" x 0.46" (2-3/4" x 7/16" or 70mm x 11.5mm). collar bar: none. Color: silver. 0.25" = 1/4" or 6mm - pretty small for standard button holes.
This product would be a great fit for those looking to add vintage charm to their clothing, such as button-down shirts or blazers, adding a touch of elegance and nostalgia.