Specification: 100% Brand new and high quality Material: Tempered Glass Color: Transparent Diameter: 28/30/34/35/36/37/38/40mm Conversion: 1mm=0.039 inch, 1 inch=25.4mm Features: -Universal smart watch tempered glass screen protector film for 28/30/34/35/36/37/38/40mm round watch face. -9H Hardness Anti-Scratch, Anti-Fingerprint, Bubble Free. -Ultra-high light transmittance: (transmittance of 98% or more) optical transmittance grade, ultra-low reflection. -High sensitivity: makes installation easy and attaches the film firmly so as to not affect the touch screen's sensitivity. -High definition: optical transmittance, low reflection, high penetration; Anti fingerprint: surface polymer anti fingerprint treatment, fingerprint suppression is greatly improved than ordinary protective film Notice: 1.Please allow 1-3mm error due to manual measurement,Please make sure you do not mind before you bid. 2.The colors may be a little difference for the different monitors displays, please understand. Package included: 1 x Smart Watch Screen Protector Film.