Check the listing for details. Compatible with 1/2" B/R Replacement Silk Typewriter & Calculator Ribbon 18YDS. Color: Black and Red, Condition: New. Listed at 19.00 USD. 1/2" replacement black/red silk ribbon. Ready for you to wind onto your existing typewriter or adding machine spools. Or you can send the spools to us and we will put the ribbon onto your spools at no extra cost!18 yards fits onto 2 inch diameter spool. Each ribbon is made to order with eyelets included 6 inches from each end. If the eyelets are not needed, simply cut the ribbon.Silk ribbons are excellent for darkness and crisp printing.Check out a couple of Youtube videos from Joe Van Cleave, who demonstrates and compares our silk ribbons to nylon fabric ribbons. Search for Episode 134 Silk Ribbon Shootout and also Episode 155 Seeking a Dark Imprint. Type of Ribbon: Silk Width: 1/2"Length: 18 yardsColor: Black/Red