Specification Brand : AMZMAKUP BulletPoint1 : 100% cosmetic inspection of eachindividual tube favours high yieldrates all along the value chain. BulletPoint2 : A low coefficient of expansion ensures a high temperature resistance, as well as thermal shock resistance. BulletPoint3 : The chemical composition of borosilicate glass provides it with a strong hydrolytic resistance and durability to corrosive substances. BulletPoint4 : A low coefficient of expansion and exceptional resistance to thermal shock also adds to its versatility, while its smooth surface offers impressive scratch resistance. BulletPoint5 : 【With Stopper】: The Sample storage tubes comes with a wooden stopper, which can effectively prevent the items in the test tube from leaking. CareInstructions : Hand Wash Color : Transparent ExternallyAssignedProductIdentifier : 7555731863323 ExternallyAssignedProductIdentifier1 : 797246230321 ExternallyAssignedProductIdentifier2 : 0797246230321 GpsrSafetyAttestation : 1 IncludedComponents : Not included ItemDisplayDimensions_Length : 5.91 inches ItemDisplayWeight : 0.21 pounds ItemName : 7 Pcs Borosilicate Glass Tube 12mm OD 2mm Thick Glass Blowing Tubes with Cleaning Brush (4.5 Inch) ItemPackageDimensions_Height : 12.8016 centimeters ItemPackageDimensions_Length : 4.699 centimeters ItemPackageDimensions_Width : 8.9916 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : science-lab-test-tubes ItemVolume : 1 cubic_centimeters Manufacturer : AMZMAKUP ManufacturerMinimumAge : 36 Material : Glass ModelName : AP-005 ModelNumber : AP-005 NumberOfBoxes : 1 NumberOfItems : 7 NumberOfPieces : 7 PartNumber : AP-005 ProductDescription : A good choice ProductSiteLaunchDate : 2024-10-15T02:37:53.234Z Size : 4.5 inches Style : Modern SupplierDeclaredDgHzRegulation : not_applicable TargetAudienceKeyword1 : unisex TargetAudienceKeyword2 : as described TargetAudienceKeyword3 : as described TargetGender : unisex UnitCount : 7 UnspscCode : 52150000