I HAVE HUNDREDS OF TIE TACKS, TIE BARS AND CUFF LINKS. tie tack/bar: 2.01" x 0.89" (2" x 7/8" or 50.5mm x 22mm). collar bar: none. 0.50" = 1/2" or 12.5mm -this is fairly large for standard button holes.
This product would be a great fit for machinists, aerospace engineers, and anyone working in the technical industry requiring a fine-quality tie bar clip to keep their ties secure during demanding work hours.