1). Privacy coating to protect your personal information from viewing by others. 2). Anti-scratch,anti-grease,anti water and dustproof. 3). Special no-gule silicon, self-adhesive. 4). Zero bubble and anti fingerprints.washable and resuable. 5). Triple layers materials provide ultra protector. 6). Durable. 7). Leave with no residue and would not corrode the surface.