JVCC MAG-01 Magnetic Tape is a flexible magnet mounted on a thin polyester film which has been coated on one side with an aggressive rubber based pressure sensitive adhesive. Tape is supplied self-wound on a semi-bleached kraft paper liner. The magnet is comprised of a multipole one face flexible magnet (composite of strontium and/or barium ferrite particles oriented with a thermoplastic polymer matrix). These permanent magnets remain magnetized indefinitely if not subjected to a demagnetizing force. This tape is not returnable for this reason.