CD security strip: EM strip, CD strip, CD security strip, DVD strip,CD label. CD security strip: Disc Two Inner Diameter: 2cmOuter Diameter: 11.4cm1) ... as 3M, Dialoc, Certus, Checkpoint.2) Cobalt-based strip, adopt super-thin demagnetizing slice. Good effect of re/demagnetizing ... .3) Excellent performanceThe materials of the strip all pass the authorization of SGS Testing Group, and ...