This is a solid Black Typewriter Ribbon. This Twin Spool Typewriter Ribbon is .5 In. x 24 Ft. Spool Diameter: 1 15/16 In. This ribbon is designed to work with all of the following machines:
SMITH CORONA CLIPPER SMITH CORONA DARNET SMITH CORONA ELECTRA 110 SMITH CORONA ELECTRA 120 SMITH CORONA ELECTRA 210 SMITH CORONA ELECTRIC 250 SMITH CORONA ELECTRIC 315 SMITH CORONA ELECTRIC 410 SMITH CORONA ELECTRIC 75 E SMITH CORONA ELECTRIC N.S. SMITH CORONA GALAXIE 12 SMITH CORONA SILENT SUPER SMITH CORONA STERLING 5 SMITH CORONA STERLING SILENT
WILL NOT FIT Super Sterling, Skywriter, Zephyr, Corsair Deluxe as they use the smaller 1 5/8 spool size.