Application: ONLY Compatible with Samsung Galaxy Watch 4 40mm(2021 Released). NOT 44mm. NOT FOR OTHER MODELS. 40MM refers to the smartwatch model: Samsung Galaxy Watch 4 40mm, Not the screen size. This galaxy watch 4 Screen Protector 40mm tempered glass offering external surface protection to your samsung watch 4 without compromising usability, it also can be removed conveniently!^ High definition: Galaxy watch 4 screen protector made from tempered glass material, features high transparency and ultra-low reflection, 99% light transmittance, reveal true color of samsung watch4, the temper glass film features high transparency and ultra-low reflection.^ Anti-explosion and Scratch proof: The samsung watch 4 screen protector accessories protect your galaxy watch 4 against accidental drop, scratches, dirt and dust during all activities.^ Easy installation: Special Alignment Tool makes applying samsung galaxy watch 4 40mm screen protector simple and accurate, hassle-free and bubble-free and remove screen cover without leaving anything behind.Please read installation instruction carefully.^ Package: If you have any issue with Screen protector for galaxy watch 4 40mm or have the wrong size, Please feel free to contact us, we always here to solve any problem for our customer,thanks.