The TDK IEC1 Type 1 D90 90 Minute Blank Audio Cassette Tapes are high output, new vintage tapes suitable for recording. Made in Japan by TDK, these cassette tapes come in a pack of 4 and are packaged in a standard jewel case. With a capacity of 90 minutes, these recordable tapes are ideal for capturing audio recordings for personal use or professional purposes. The TDK D90 model is known for its high quality and reliability, making it a popular choice among audio enthusiasts and professionals alike.