... for iPhone 4 Consist of five layers1)PET protective film,thickness 0.05mm2)UV hard coating,thickness 0.003mm3)Polyester film,thickness 0 ... .1mm4)Silicone Adhesive,thickness 0.02mm5)PET protective film,thickness ... glue, can easily be removed and reinstalled when necessary,3)UV rays reflection blocking by 99%,4)Anti-Static film- ...