GoolRC 2Pcs Scratch-resistant Shatterproof 9H High Transmission rate 2.5D Sapphire Technology Tempered Glass Screen Protector for YUNEEC Q500 RC Quadcopter Surface hardness reaches 9H degree. Up to 99% transmission rate ensures against refection of sunlight. It is produced with 2.5D sapphire technology. Anti-shatter and scratch resistant. It can perfectly automatic adsorb on display surface.