Exclusively designed for 12.3” Microsoft Surface Pro 7 Plus (2021), Surface Pro 7 (2019), Surface Pro 6 (2018), Surface Pro 5 (2017), Surface Pro 4 (2015) Limits viewing angle to +/- 30 degrees, darken your screen while viewing from the side; (Please note that the privacy cover will darken the screen a little to prevent the peeking eyes near you, so please turn up your device display brightness for better viewing experience) 9H hardness surface, scratch-resistant and dust-proof 0.33mm thickness ultra-thin tempered glass, maintaining true touch sensitivity and flawless touch screen accuracy Bubble-free installation; no residue when removed Compatibility: Compatible with Surface Pro 7 Plus, Pro 7, Pro 6, Pro 5, Pro 4. Not compatible with any other models.