Released in 1981 SONY Rock 84 High Position, set of 4. Unopened and unused, but please consider that these are vintage items that have been in storage for over 40 years, so there may be age-related deterioration. *Since they are unopened, the operation has not been confirmed. Please refrain from purchasing if you are sensitive to details or are a perfectionist. Thank you for your understanding. #cassettetape #unused #unopened #recordingmedia