About GRC T17 Black/Red Ink Ribbon:

These are twin-spool replacement ribbons for typewriters. They produce a rich black and red color and are designed to work with the original equipment manufactured. Use of this product will not void original warranty. The housing of each ribbon spool measures 2 inches in diameter, ribbon itself measures 1/2 inch by 24 feet.

Compatibility Chart:

These universal typewriter ribbons replace manufacturers parts for:

• Adler, Brother, Olivetti, Olympia, Royal, Sears, Silver Reed, Smith Corona and Swintec
• This item is most popularly used for the Smith Corona models Clipper, Comet, Compact, Silent and Standard.
• This product is also interchangable with the GRC models T5-77B and the T2-77B