How to apply FlexibleGlass? https://www.youtube.com/watch?time_continue=2&v=BY4GKQRnaVI The instruction applies to: FlexibleGlass, HardGlass 2, MATTE, SHIELD. Back FlexibleGlass ARC ARC Special Edition HardGlass 2 HardGlass Max HardGlass Max Privacy MATTE HardGlass SHIELD ARC Smartwatch