"Dirt, dust and other microparticles constantly circulate around us. If debris interrupts the drive's read/write heads and their contact with the tape, the result may be permanent data loss. Maintaining a regular cleaning schedule using Imation's Dry Head Cleaning Products for network systems will ensure optimum data protection. This process is totally dry, eliminating the application of messy and possibly hazardous chemicals. Dry head cleaning is virtually hassle-free. Simply insert the cartridge into your drive. The cleaning process itself is automatic and takes as little as twenty seconds versus five minutes for wet-type cleaners. When the process is finished, simply rewind the tape and mark the date in the space provided. 4mm drive head cleaning cartridge is compatible with all 4mm DDS and DataDAT drives. Provides 50 cleanings."