Specification Brand : GOWE BulletPoint : Flask, 1L Filtering,40/35/ BulletPoint1 : 100% SATISFACTION SERVICE: Our Erlenmeyer Flasks are made of high quality borosilicate glass. If they are any questions, please feel free to contact us, we will do our best to meet your satisfaction. Pls note that the stopper is very soft, you have to push hard to get in, only that it doesn't push out. BulletPoint2 : High Quality Borosilicate Glass: High temperature resistance. These borosilicate glass erlenmeyer flasks have High chemical durability and low thermal expansion. BulletPoint3 : Convenient to use: Suitable for beginners or professional use, also the students, convenient classroom borosilicate glass erlenmeyer flasks. BulletPoint4 : Clear Scale: Erlenmeyer Flasks have clear and accurate scales for you to measure liquid efficiently. BulletPoint5 : Neck Style: Narrow mouth. Conducted in a slow and careful manner to avoid breakage. Heavy Duty Reusable. Capacity : 1 liters ExternallyAssignedProductIdentifier : 8658550325795 ExternallyAssignedProductIdentifier1 : 0827674677310 ExternallyAssignedProductIdentifier2 : 827674677310 GraduationInterval : 200 milliliters ItemName : GOWE Flask, 1L Filtering,40/35 ItemPackageDimensions_Height : 18.288 centimeters ItemPackageDimensions_Length : 8.89 centimeters ItemPackageDimensions_Width : 15.24 centimeters ItemTypeKeyword : science-lab-filtering-flasks Manufacturer : Gowegroup Material : Glass ModelNumber : Flask NumberOfItems : 1 PartNumber : GWE-1005643 ProductDescription : GOWE Flask, 1L Filtering,40/35 ProductSiteLaunchDate : 2014-11-08T13:25:47.152Z Size : 500ml SpecificationMet : Astm Style : Vol. 500ml, Pack of 4 SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 41121804 Voltage : 230 volts