1PC Blank Audio Cassette Shell - Empty Color Magnetic Tape Case for DIY Recording No Tape Core Reel-to-Reel Style (Multi-Color) 100% new and high quality Material: plastic Color: see picture Size: length 9.9cm/3.89in, width 6.2cm/2.44in, height 1.1cm/0.43in Package Includes: 1Pc Tape Case(no Tape) This model has no inner core and no outer box Magnetic tape is a storage medium that uses magnetism to store digital data. It is a thin strip of plastic coated with a magnetic material such as iron oxide. Magnetic tape is used to store large amounts of data, such as audio, video, and computer files. It is also used for data archiving as it can be stored for long periods of time without degradation. Tapes are read and written by tape drives, which use read/write heads to magnetize and demagnetize the tape. Tape is relatively inexpensive and is still used for backup and archival purposes, although it is slowly being replaced by other storage media such as hard drives and optical discs. Magnetic tape is also used for audio and video recording because it can store large amounts of data in a relatively small space. Note: 1. Please allow 5-10mm differences due to manual measurement, thanks. 2. The actual color of the product may be slightly different from the picture, and the website is caused by various factors such as the brightness of the monitor and the brightness of the light. _x000D_ _x000D_ _x000D_