Scratch resistant andFeature: Made of nano liquid, can create an invisible / ultra thin coating film on the screen of your phone / tablet. Provides full definition high definition protection to your phone / tablet screen, it's a perfect replacement for tempered glass screen protectors. Suitable for all kinds of screens, such as smartphones, laptops, smart watches, camera lenses, tablets, glasses, etc. Especially for curved phone screens. Easy to apply and bubble-free - the liquid glass screen protector is easy to use for everyone, just apply it to your phone screen. Easy to use - free collage, no harm to the screen, no impact on 3D keys and fingerprint / face recognition. Specification: Durability: more than 5000 times the durability Hardness: 9 H Volume: 10 ML / 20 ML / 30 ML Quantity: 1 Set