This is promotional merchandise for Pink Floyd's album "A Momentary Lapse of Reason" (Japanese title: Utsu), released in 1987. The Pink Floyd logo is placed on the bed depicted on the album cover in image 5. If I remember correctly, I believe this was a reader's prize from the music magazine "Music Life," which was published by Shinko Music at the time. It's quite rare. It's unused and has been stored at home. It's in good condition, but please understand that it is old. There are no problems with attaching and detaching the pin. Thank you for looking.