Specification AgeRangeDescription : adult Brand : Windzerdong BulletPoint1 : O.D. 40mm,Thk. 2mm BulletPoint2 : L. 200mm/250mm/300mm BulletPoint3 : Material: Made From Borosilicate Glass BulletPoint4 : Classification: Brown high borosilicate glass tube BulletPoint5 : For any issue after purchase, don't hesitate to send an email to us, we will deal with the problem positively Color : One Color ExternallyAssignedProductIdentifier : 7555731637672 IncludedComponents : Test tubes ItemName : Windzerdong 3pcs Brown high Borosilicate Glass Tube,O.D. 40mm,Thk. 2mm,L. 200mm/250mm/300mm,Tea Yellow high Temperature Resistant(O.D.40x2x200mm) ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : science-lab-test-tubes Manufacturer : Windzerdong ModelName : Windzerdong ModelNumber : Windzerdong NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : Windzerdong ProductDescription : 3pcs Brown high borosilicate glass tube,O.D. 40mm,Thk. 2mm,L. 200mm/250mm/300mm,Tea yellow high temperature resistant