Feature:1. High‑quality sapphire crystal glass with a hardness level of 9, strong and durable.2. Smooth surface, high temperature resistance, scratch resistance and wear resistance.3. The watch glass lens is very transparent, with smooth edges and no scratches.4. Including 5pcs different size watch glass, meeting your different demands.5. Replacement watch glass, wonderful watch accessory watch parts.Specification:Item Type: Watch GlassMaterial: Sapphire Crystal Glass Color: As shown in the pictureLens Diameter: Approx.25.5mm / 1.00in, 26mm / 1.02in, 26.5mm / 1.04in, 27mm / 1.06in, 27.5mm / 1.08inQuantity: 5pcsMiddle Thickness: Approx.2.2mm / 0.09inEdge Thickness: Approx.1.7mm / 0.07inDiameter Error: ±0.2mm Package List:5 x Watch GlassNote:1. Please allow 1‑2mm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.