MouKou Apple Watch iWatch 42MM Screen Protectors 3-Pack Tempered Glass Screen Protector for iWatch 42MM ONLY Premium Tempered Glass for Apple Watch iWatch 42MM Only. Featuring maximum protection from drops, scratches, scrapes. 99.9% High-definition clear hydrophobic and oleophobic screen coating protects against sweat and oil residue from fingerprints. Each layer provides specific functions that allow the Ultra Clear HD line of screen protectors to outperform competitor products that use inferior materials and manufacturing processes. 30 days money back. Lifetime Warranty. MouKou Tempered Glass screen protectors are designed slightly smaller than the actual screen of the device due to the curved edges of the phone. - By not covering the curved edges of the devices,it will improve the installation process and prevent protectors from damage by causing it to lift and allow dusts in between the screen protector and your device. - This is due to the nature of the Apple Watch iWatch 42MM.