Specification Brand : PROGLASS BulletPoint1 : Made by hand blowing BulletPoint2 : Made of borosilicate glass 3.3 Capacity : 250 milliliters Color : Clear ExternallyAssignedProductIdentifier : 7397757215270 ItemName : PROGLASS DEWAR, Low Form, HEMISPHERICAL Fits Flask Sizes (mL) 500 ItemTypeKeyword : dewar-flasks Manufacturer : PROGLASS Material : Glass NumberOfItems : 1 PartNumber : 7397757215270 ProductDescription : Dewar flask with weighted metal base for stability and with a full-length aluminumhousing which extends to the top rim for added protection.*Due to extra high vacuum, the Dewar flasks still have a rare possibility to explode, so working behind a safety shield in hood and always wearinggoggles are strongly recommended. Fits Flask Sizes (mL):500 Interior Dimensions in Depth × Diameter (mm):85×123 ProductSiteLaunchDate : 2017-09-02T07:00:00.000Z UnspscCode : 41121804