Skinomi DryTech - NOOK Screen Protector Premium HD Clear Film / Ultra High Definition Dry-Install Invisible and Anti-Bubble Crystal Shield Compatible with NOOK Tablet Designed to be compatible with the NOOK Tablet Incredibly strong thermoplastic urethane composition that makes the film difficult to scratch or puncture Three layers of shield protection that work in tandem to protect your device, reduce UV ray absorption, and prevent yellowing over time Manufacturer Lifetime Replacements