nVisibleSHIELD Protective Screen - Apple iPod . ZAGG's invisibleSHIELD™ is an exceptionally clear and virtually indestructible film that protects your iPod touch 2nd Gen from any scratches. Exclusive, patented film - with nano-memory™ technology - covers and shields your device, keeping it as pristine and like new! Precision pre-cut invisibleSHIELD applies directly to your iPod touch 2nd Gen, providing the toughest, most durable protection you will find. The invisibleSHIELD is used in the military, to protect high-speed helicopter blades from dust, dirt and debris. Now use that same powerful technology to protect your iPod touch 2nd Gen. Only .2 millimeters thick making it the slimmest iPod touch 2nd Gen skin or iPod touch 2nd Gen cover of its kind. So tough that we back it with a lifetime guarantee. If it ever does wear or scratch, we replace it for free, for the life of your device. Need to remove the invisibleSHIELD" No problem; it comes off clean and leaves no sticky residue.