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: 0.91" x 0.25" (7/8" x 1/4" or 23mm x 6.5mm). collar bar: none. GOOD - used, showing age appropriate signs of use such as minor scratches and minor wear, no cracks or missing pieces.