The product is a pack of 4 BASF Sound I 90 Ferric blank audio cassette tapes, each with a capacity of 90 minutes. Manufactured in 1998 in Germany, these recordable cassette tapes come in a standard jewel case packaging. With a unit quantity of 4, these new and sealed cassette tapes are ideal for recording audio and storing music or speeches. The BASF brand ensures high quality and reliability for your audio recording needs.