Glass Protector AlzaGuard FlexGlass for Apple Watch 42mm:Flexible and strong 5H protective plexiglass for your Apple WatchProtect your Apple Watch 42mm from damage by using the AlzaGuard FlexGlass protective glass. The glass is made of PMMA plastic and has a hardness of 5H, thanks to which it retains high resistance to shocks and at the same time maximum flexibility. This means it will not crack on first contact  with a table or other hard surface. PMMA plastic is used as an alternative to plexiglass due to its  greater flexibility and lower weight. PMMA is also used in dental prosthetics and the production of contact lenses. 3D roundingAlzaGuard FlexGlass adheres perfectly to your watch. Retains touch sensitivityYou can use your watch as before - AlzaGuard FlexGlass does not limit your devices functionality. Apple Watch 42mmAlzaGuard FlexGlass is designed specifically to trace the shape of your watch. Fast bubble-free applicationThe package contains everything you need to apply our AlzaGuard FlexGlass to the display of your Apple Watch 42mm. AlzaGuard FlexGlass has a thickness of only 0.55 mm and a high-quality adhesive across the entire surface. As a result, you can look forward to a hassle-free application with guaranteed maximum adhesion. Detailed AlzaGuard glass or film protector installation tips can be found in our article on How to install a mobile phone screen protector.*If there are bubbles or you are experiencing limited touch screen sensitivity after the installation, it has been performed incorrectly.Compatible with the following models:38mm a 42mm - 1-3 series40mm a 44mm - 4-6+SE series