I HAVE HUNDREDS OF TIE TACKS, TIE BARS AND CUFF LINKS. I always try to point out any clear blemishes and condition. collar bar: none. tie tack/bar: 2.00" x 3.25" (2" x 3-1/4" or 50.5mm x 82mm). 0.50" = 1/2" or 12.5mm -this is fairly large for standard button holes.