1.Fully transparent design, using super-thin cobalt based em strips 2.Allows circulating cd & single sided dvd Protects the cd surface from scratches or damage 3.Super-thin strips will not affect cd reading 4.Can be turned "off" and "on" again repeatedly, retaining original effectiveness 5.Strips never lose their effectiveness after repeated desensitizing and resensitizing 6.Desensitize and resensitize with the same accessories as your books 7.Archival quality adhesive will not affect library materials Fob shanghai usd 0.11~0.2 Payment terms: t/t Minimum order:10000 piece/pieces Supply ability: 1000000 piece/pieces / month Packagng: carton Delivery lead time:10days after receiving the payment