Check the listing for details. SMITH CORONA STERLING ELECTRIC 12 TYPEWRITER RIBBON. Condition: New. Listed at 8.99 USD. Smith-Corona Sterling Typewriter Ribbon Smith-Corona made two models of the Super Sterling -- One uses a 2" diameter spool. One uses an apprx 1-5/8" diameter spool - this sale is for the 2" diameter spools - the smaller spool is out-of-production, see our note below Twin-spool - Black 1/2" ribbon - 2" diameter We carry all typewriter ribbons - NEW Same fresh stock we sell in our office supply store everyday, guaranteed. New. #AOSGRBT17 NOTE ON STERLING ELECTRIC SOME MODELS USE APPRX 1-5/8" SPOOL - THIS SIZE SPOOL IS NOT AVAILABLE ANY MORE - IT IS OUT OF PRODUCTION - THE RIBBON WE SELL FOR SMITH-CORONAS IS A 2" SPOOL -- THE RIBBON IS THE SAME 1/2" NEW RIBBON AND CAN BE RE-SPOOLED ONTO YOUR EXISTING SMALLER SPOOLS -- WE OFFER THIS AS A WAY TO GET A NEW RIBBON FOR YOUR MACHINE -- BUT YOU WILL HAVE TO RE-SPOOL THE RIBBON ONTO YOUR SPOOL -- THANKS!