Specification Brand : TEN-HIGH BulletPoint1 : 1.【Specifications】Diameter: 27.9mm (1.1 inch), Thickness: 4.1mm (0.16 inch), Transmittance: 99.99% . BulletPoint2 : 2.【High Quality Quartz Crystal】Irradiation-resistant, stable performance and long life, used in a harsh environment. BulletPoint3 : 3.【Low Power Loss】High anti-reflection 1064AR film coating applied to both sides, high damage threshold. BulletPoint4 : 4.【Low Scattering】Standard high efficiency low lost anti-reflectance, low scattering. BulletPoint5 : 5.【Package】10 pcs/lot BulletPoint6 : Auto-lifting & HD Camera: Our unique World’s 1st auto-lifting system adapts to materials from 1mm to 140mm instead of purchasing extra riser base, you can still enjoy versatility material for various applications. Smart HD camera for precise positioning, ensuring what you see is what you get and minimizing material waste. BulletPoint7 : User-Friendly Software with a Wealth of Resources: World’s 1st QuickView Matrix for one-click material settings, simplifying workflows. The easiest 3D preview for full-wrapped cylinders at one go and Smart Fill for efficient batch engraving. Access thousands of design templates to maximize creativity. Color : 10 pcs GpsrSafetyAttestation : 1 IncludedComponents : No ItemDisplayWeight : 0.16 kilograms ItemForm : solid ItemName : TEN-HIGH Laser Protective Windows Protective Lens Size: Diameter 27.9mm, Thickness 4.1mm, Quartz Protective Lens for 0-2000W Fiber Laser Cutting Machines, 10pcs/lot ItemPackageDimensions_Height : 8.8 centimeters ItemPackageDimensions_Length : 7.6 centimeters ItemPackageDimensions_Width : 8.7 centimeters ItemPackageQuantity : 1 ItemShape : Rectangular ItemTypeKeyword : engraving-tools Manufacturer : TEN-HIGH Material : metal ModelName : sharppin ModelNumber : TH-10-GJCK-D27.9-H41-US NumberOfItems : 1 NumberOfPieces : 30 OperationMode : Manual PartNumber : TH-10-GJCK-D27.9-H41-US PowerSourceType : ac/dc ProductDescription : Material: JGS1 Quartz Coating film: 1064 AR Application: Fiber laser cutting machines ProductSiteLaunchDate : 2019-03-22T07:00:00.000Z Size : 27.9*4.1 mm (D*T) SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 15 UnspscCode : 60120000