Specification Brand : USA LAB BulletPoint : Our USA Meta Sight Glass has a solid gasket design with Viton seals BulletPoint1 : 【Color】Transparent; Material: Glass; Diameter: 50mm/ 1.97", Thickness: 2 mm/ 0.08";Package: Included 6 pcs Watch Glass Beaker Covers; BulletPoint2 : 【Advantage】The glass is made of table glass with high chemical durability, which has corrosion resistance, which can effectively keep the material pure, increase the liquid surface area to accelerate evaporation, etc BulletPoint3 : 【Application】This watch glass is mainly used in the laboratory and in homes, such for suspension drop culture tests, beaker covers, temporary storage of liquid and solid samples, corrosive substances weighing, paint mixing, etc BulletPoint4 : 【Instruction】 1. Before use, the watch glass needs to be washed and dried, which can effectively avoid the influence of other substances on the experimental results; 2. After application, it should be cleaned and dried in time to avoid residual substances that are difficult to wash off and affect the next use BulletPoint5 : 【Notice】This Watch Glass cannot be heated directly with fire to prevent rupture or be used as an evaporation dish. Note that the watch glass is selected according to the caliber of the instrument. Generally, the diameter of the watch glass should be larger than the diameter of the instrument by 1cm, which is more convenient to use CareInstructions : Wipe with Dry Cloth Color : 50mm ExternallyAssignedProductIdentifier1 : 810047124825 ExternallyAssignedProductIdentifier2 : 0810047124825 ItemDisplayDimensions_Height : 0.98 centimeters ItemDisplayDimensions_Length : 3.15 centimeters ItemDisplayDimensions_Width : 5.31 centimeters ItemName : Meta Sight Glass - Various Sizes - USAlab ItemPackageDimensions_Height : 1.57 inches ItemPackageDimensions_Length : 2.75 inches ItemPackageDimensions_Width : 2.75 inches ItemTypeKeyword : science-lab-watch-glasses Manufacturer : USA Lab Material : Glass ModelNumber : L62088136TP7YFXDHJP16EOG NumberOfBoxes : 1 NumberOfItems : 1 OccasionType1 : Anniversary OccasionType2 : Birthday PackageLevel : unit PartNumber : METAGLASS Pattern : Solid ProductDescription : Our USA Meta Sight Glass has a solid gasket design with Viton seals. Size: 1.5", 2" & 3" We ship all glassware products with additional care, but sometimes they arrive broken. If glassware arrives broken, please contact us within 3 days of receiving your product and we will either send you a brand new piece or send you a refund! Any glassware broken after delivery voids all warranties. Thank you for understanding! For Technical Support, Questions, or Other Issues Please Email or Call Us! ProductSiteLaunchDate : 2020-02-24T17:30:18.943Z Size : 3" SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredDgHzRegulation1 : not_applicable SupplierDeclaredDgHzRegulation2 : not_applicable SupplierDeclaredDgHzRegulation3 : not_applicable SupplierDeclaredDgHzRegulation4 : not_applicable SupplierDeclaredDgHzRegulation5 : not_applicable