I HAVE HUNDREDS OF TIE TACKS, TIE BARS AND CUFF LINKS. I always try to point out any clear blemishes and condition. tie tack/bar: 2.97" x 0.25" (2-9/16" x 1/4" or 65mm x 6mm). collar bar: none. 0.25" = 1/4" or 6mm - pretty small for standard button holes.
