Specification Brand : HARFINGTON BulletPoint1 : Size - Fit flat glass screen size: 38.5mm / 1.52" (Suitable for flat screens, NOT for curved screens.); effective thickness: 0.33mm / 0.013" (thickness before use: 0.5mm / 0.02"); high definition, anti-scratch, 9H hardness; compatible brand: universal; shape: round; color: clear. 22mm to 46mm round screen protectors are available. BulletPoint2 : Material - High aluminum tempered glass watch screen protectors contain less glass foreign matter, good ductility, hardened to 9H, not easy to scratch. Even if you scratch it hard with metal or other hard objects, it will not scratch, but it is relatively brittle. BulletPoint3 : Features - HD clear (99% transmission), ultra-thin, showing the original clear picture quality, maintaining the original touch sensitivity. Anti-explosion, prevent the watch from accidentally hitting the glass screen from breaking and flying, and protect your safety. BulletPoint4 : Applications - The smart watch protection film provides maximum scratch protection for the smartwatch, easy to install, hassle-free, bubble-free, waterproof and anti-fog. The anti-fingerprint glass protector also can be easily removed. Please read the operating instructions in the product description carefully. BulletPoint5 : Notice - Please measure the flat area of the watch mirror before purchasing. If there is a chamfer area, it should be excluded. Tear off a layer of protective film to use. If the reverse side or the screen surface is not clean, the film will not stick. Before applying the film, you need to wipe and dry the surface glass screen with alcohol. NO guide stickers, wet wipes, dry wipes and other accessories. Color : Clear CompatibleDevices : Watch CompatibleDeviceSizeMaximum : 44 millimeters CompatiblePhoneModels : Compatible with Apple Watch Series 4/5/6/se 44mm ExternallyAssignedProductIdentifier1 : 0751717916985 ExternallyAssignedProductIdentifier2 : 751717916985 FinishType : Matte FormFactor : Case ItemHardness : 9H ItemName : HARFINGTON 5pcs Watch Glass Screen Protectors 38.5mm HD Tempered Glass High AL Anti-Scratch 9H Hardness High Definition Anti-Explosion Smartwatch Screen Protection Film ItemPackageDimensions_Height : 14.1 centimeters ItemPackageDimensions_Length : 1.7 centimeters ItemPackageDimensions_Width : 10.1 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : smart-watch-screen-protectors Manufacturer : HARFINGTON Material : Tempered Glass ModelNumber : hta230322hh0062 NumberOfItems : 5 PartNumber : hta230322hh0062 Pattern : Solid ProductDescription : High aluminum tempered glass watch screen protectors contain less glass foreign matter, good ductility, hardened to 9H, not easy to scratch. Even if you scratch it hard with metal or other hard objects, it will not scratch, but it is relatively brittle. HD clear (99% transmission), ultra-thin, showing the original clear picture quality, maintaining the original touch sensitivity. Anti-explosion, prevent the watch from accidentally hitting the glass screen from breaking and flying, and protect your safety. Anti-scratch, prevent accidental scratches and affect the appearance. The smart watch protection film is very easy to install, hassle-free, bubble-free, waterproof and anti-fog. The anti-fingerprint glass protector significantly reduces annoying fingerprints, dust, oil smudges, also can be easily removed. Operating Instructions: Step 1, clean the surface of the screen. Step 2, tear off half of the sticker, stick half of the film on the screen, and tear off the other half of the sticker. Step 3, Peel off the top layer of protective sticker. Notice: Please measure the flat area of the watch mirror before purchasing. If there is a chamfer area, it should be excluded. Tear off a layer of protective film to use. If the reverse side or the screen surface is not clean, the film will not stick. Before applying the film, you need to wipe and dry the surface glass screen with alcohol. 22mm to 46mm round screen protectors are available.