Stevenson Cassette Head Cleaner
Keep your tape head clean with this cleaning tape
This kit includes a cassette with cleaning tape and 3/4 oz of cleaning fluid (isopropyl alcohol).
Use this cleaning kit after 20 hours of playing time, or when the sound becomes dull. Apply 3 drops of solution on the cleaning tape through the window. Run the cassette until the end. Replace the cleaning tape after 10 uses.