The FJA Products Olivetti Typewriter ribbon has a 6MM center hole designed to fit into all of the following machine: OLIVETTI LETTERA 21 ● OLIVETTI LETTERA 22 ● OLIVETTI LETTERA 25 ● OLIVETTI LETTERA 31 ● OLIVETTI LETTERA 32 ● OLIVETTI LETTERA 35 ● OLIVETTI LETTERA 36 ● OLIVETTI LETTERA 36C ● OLIVETTI LETTERA 82 ● OLIVETTI LETTERA S14 ● OLIVETTI LINEA 88 ● OLIVETTI LINEA 98 ● OLIVETTI LOGOS 240 ● OLIVETTI LOGOS 245 ● OLIVETTI LOGOS 25 ● OLIVETTI LOGOS 250 ● OLIVETTI LOGOS 270 ● OLIVETTI LOGOS 600 SERIES ● OLIVETTI MERCATOR 5000 ● OLIVETTI MERCATOR 5102 ● OLIVETTI MERCATOR 5103 ● OLIVETTI MERCATOR 5105 ● OLIVETTI MERCATOR 5106 ● OLIVETTI P602 ● OLIVETTI P603 ● OLIVETTI P652 ● OLIVETTI PRAXIS 48 ● OLIVETTI ROMA ● OLIVETTI SCRIBE ● OLIVETTI STANDARD ● OLIVETTI STUDIO 44 ● OLIVETTI STUDIO 45 ● OLIVETTI SV40 ● OLIVETTI TE300 ● OLIVETTI TEKNE 3 When you purchase the FJA Products Black and Red Olivetti Typewriter Ribbon from FJA Products, we guarantee you the best quality you can get. We can assure you, you will receive your Olivetti Typewriter Ribbon at your location right on time, with no hidden costs. If you are not fully satisfied with the Black and Red Olivetti Typewriter Ribbon you have purchased from FJA Products, we will refund your money or replace the Olivetti Typewriter Ribbon with another brand new FJA Products Olivetti Typewriter Ribbon.