The box and reel are for TDK Tape 100, size 7, but the recording tape is TDK Tape 150, 550m. Please check the attached photos. Brand: TDK Tape 150 550m (19cm/s 45 minutes) Recording tape, size 7 Since I don't have a deck, I haven't been able to check the condition of the tape. You can check from the attached photos 4 and 5, but it was wound neatly and stored in a dark place. Also, I believe the tape has been erased, but if there is any recording on it, please erase it. Thank you for looking. Price reduced from 800 yen to 700 yen. Thank you for your consideration.