Specification Brand : HARFINGTON BulletPoint1 : Size - Material: Optical Glass; Diameter: 35mm / 1.38-inch; Thickness: 2mm / 0.08-inch; 2 x Watch Clear Crystal Lens Glass BulletPoint2 : Material - Made of quality optical mineral glass, good transparency, scratch resistant, corrosion resistant, sturdy and durable, and has a long service life. BulletPoint3 : Feature - The watch glass lens is crystal clear, with high transparency, rounded and smooth edges, comfortable hand feeling, and no scratches. BulletPoint4 : Application - Easy to install and replace, it can easily replace damaged glass mirrors. Very suitable for repairing watches by yourself, provided that repair tools are available. BulletPoint5 : Note - The lens diameter tolerance is ±0.05mm, please use professional tools to measure before purchasing, and choose the appropriate size. Please be careful not to wipe the watch mirror with too hard paper or cloth, so as not to scratch the glass surface, just wipe it clean with a soft cloth. ItemName : HARFINGTON 2pcs Watch Clear Crystal Lens Glass 35mm Dia. 2mm Thick Round Flat Mineral High Transmittance Watch Glass Replacement Part for Watchmaker Repair ItemPackageDimensions_Height : 9.2 centimeters ItemPackageDimensions_Length : 1.3 centimeters ItemPackageDimensions_Width : 6.1 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : watch-repair-tools Manufacturer : HARFINGTON Material : Glass PartNumber : hta240112hh001284 ProductDescription : 1. Made of quality optical mineral glass, good transparency, scratch resistant, corrosion resistant, sturdy and durable, and has a long service life. 2. The watch glass lens is crystal clear, with high transparency, rounded and smooth edges, comfortable hand feeling, and no scratches. 3. Easy to install and replace, it can easily replace damaged glass mirrors. Very suitable for repairing watches by yourself, provided that repair tools are available. 4. The lens diameter tolerance is ±0.05mm, please use professional tools to measure before purchasing, and choose the appropriate size. 5. Please be careful not to wipe the watch mirror with too hard paper or cloth, so as not to scratch the glass surface, just wipe it clean with a soft cloth.