Specification Brand : Generic BulletPoint1 : Stainless steel storage canister for cryogenic tubes. BulletPoint2 : For use with liquid nitrogen tank with neck opening of 2" (50 mm) or more. BulletPoint3 : MULTIFUNCTIONAL EXPERIMENTAL TOOL: The Sound Physics Demonstration Cover can not only be used for sound propagation experiments, but also demonstrates the re-boiling of water under vacuum, vacuum fountains, evaporation and icing, vacuum coatings, and atmospheric pressure, which is a multi-functional tool that enhances the teaching and learning fun BulletPoint4 : SIMPLE AND EASY TO OPERATE: The vacuum demonstration hood is easy and convenient to operate, students can operate by themselves, through the vacuuming process to observe the phenomenon of sound gradually diminishing until it disappears, as well as closing the exhaust valve after the ringing continues but no sound, to deepen understanding BulletPoint5 : PORTABLE DESIGN: The vacuum demonstration hood is lightweight and portable, compact size, easy for teachers to carry to the outdoor or different classrooms for teaching demonstration, it is a powerful assistant for science education. Please note that the product does not include batteries, you need to bring 2 AA batteries by yourself Capacity : 500 milliliters IncludedComponents : Stainless steel dipper for liquid nitrogen tank ItemName : Stainless Steel Canister, Storage Tank Dipper, Diameter 38 mm 1 1/2 inch (38(D) x125(H1) x420(H)) ItemPackageDimensions_Height : 20 centimeters ItemPackageDimensions_Length : 28 centimeters ItemPackageDimensions_Width : 21 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : dewar-flasks Manufacturer : Chang Bioscience Material : Foam ModelNumber : Agatigeam6g3bt10u NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : SSD38 ProductDescription : Stainless steel storage canister for cryogenic tubes. For use with liquid nitrogen tank with neck opening of 2" (50 mm) or more. ProductSiteLaunchDate : 2024-12-12T00:15:16.003Z Size : 38(D)x125(H1)x420(H) SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnspscCode : 52152002