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: 2.38" x 0.24" (2-3/8" x 1/4" or 60mm x 6mm). 0.25" = 1/4" or 6mm - pretty small for standard button holes.