Tempered glass screen protector 0.26mm thickness ultra slim glass scratch resistant glass 99.99% transparency case friendly high clarity hd glass our glasses will fit any case 9h hardness anti-scratch anti-shatter tempered glass instruction: please, clean the screen surface thoroughly using wet and dry pads (included in the package).Peel first layer and position tempered glass on the screen surface.Once tempered glass is positioned, press the middle part of the tempered glass and work carefully toward edges.Freedomtech tempered glass can be taken off and re-apply (professional assistance recommended)