Size - Fit glass screen size: 36mm / 1.42"; type: matte; shape: round; color: clear. Sizes vary from 15mm to 50mm.||Material - Made of flexible premium thermoplastic polyurethane (TPU), the watch screen protectors have excellent abrasion resistance, high hardness, high strength, good elasticity, low temperature resistance, good oil resistance and environmental resistance.||Features - The matte screen protector is HD clear and smooth to the touch (like silk). Resists dirt, sweat and annoying fingerprints with little friction resistance even with sweaty hands. No screen glare, no dazzling even in bright sunlight, easy to read outdoors or in light.||Applications - Provides maximum scratch protection for the smartwatch. With nano-elasticity, it can prevent screen breakage caused by drops. Small scratches and air bubbles can be automatically repaired. The soft and flexible material is designed to maximize coverage of the curved corners and edges.||Notice - Before applying the film, you need to wipe and dry the watch glass screen. Only measure the size of the corresponding glass surface, excluding the baffle diameter. Easy to install, hassle-free and bubble-free. It can also be easily removed.