Self-Adhesive Magnetic Tape - 25mm x 1.25mm | 30m ROLL | For Vehicle Guidance Systems OnlyStrong Tape Magnet Product Description: This self adhesive magnetic tape has a width of 25mm and a thickness of 1. 25mm. The magnetic roll comes in a length of 30 metres. Made from Strontium or Barium ferrite powder within a polymer matrix, our self adhesive magnetic tape provides good demagnetisation resistance and reasonable resistance to chemical agents. With a gauss reading of 200, this tape is adhesive along the South pole and is non adhesive