I HAVE HUNDREDS OF TIE TACKS, TIE BARS AND CUFF LINKS. cuff links: 0.85" x 0.85" (approx. 7/8" x 7/8" or 215mm x 21mm). I always try to point out any clear blemishes and condition. GOOD - used, showing age appropriate signs of use such as minor scratches and minor wear, no cracks or missing pieces.