Specification AgeRangeDescription : Kid Brand : Yunseity BulletPoint : rarefied hydrogen gas sample - for collection BulletPoint1 : 64MM PRISM LENS: This pyramid prism has 64mm glass lens with bright texture, providing high measurement accuracy and work efficiency. BulletPoint2 : OPTICAL GLASS LENS: The prism lens is made of optical glass, with fine polishing and a uniform and delicate coating to ensure good durability. BulletPoint3 : GOOD PERFORMANCE: With exquisite workmanship, the lens is transparent, uniform, and delicate, with small errors and high qualification rate. BulletPoint4 : PRISM SPECIFICATION: This optical glass prism has an aperture of 0.2‑1, an irregular aperture of 0.1‑0.3, and a comprehensive angle of 2‑8 minutes. BulletPoint5 : APPLICATION FIELDS: This conical prism is widely used in component surveying, optical catching and drilling, and other industries. CareInstructions : Hand Wash Only Color : 1pc ExternallyAssignedProductIdentifier : 9079888851968 FinishType : Chrome IncludedComponents : sheet ItemName : 64mm Prism Lens, Optical Glass, High Measurement Accuracy, Wide Application, Copper Coated Conical Prism for Surveying and Mapping ItemPackageDimensions_Height : 8 centimeters ItemPackageDimensions_Length : 10 centimeters ItemPackageDimensions_Width : 10 centimeters ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : science-classroom-optics-kits Manufacturer : Yunseity Material : Glass ModelName : Yunseityxfasi0qoy8 ModelNumber : Yunseityxfasi0qoy8 NumberOfItems : 1 OperationMode : Manual PartNumber : Yunseityxfasi0qoy8 PatternType : Solid ProductDescription : 1. 64MM PRISM LENS: This pyramid prism has 64mm glass lens with bright texture, providing high measurement accuracy and work efficiency. 2. OPTICAL GLASS LENS: The prism lens is made of optical glass, with fine polishing and a uniform and delicate coating to ensure good durability. 3. GOOD PERFORMANCE: With exquisite workmanship, the lens is transparent, uniform, and delicate, with small errors and high qualification rate. 4. PRISM SPECIFICATION: This optical glass prism has an aperture of 0.2‑1, an irregular aperture of 0.1‑0.3, and a comprehensive angle of 2‑8 minutes. 5. APPLICATION FIELDS: This conical prism is widely used in component surveying, optical catching and drilling, and other industries.