Specification Brand : csauing BulletPoint1 : centrifuge tubes also include a convenient white writing for easy marking and identification. BulletPoint2 : 50x/set round bottom centrifuge tube, adequate quantity can meet your daily use and replacement demands. BulletPoint3 : 50ml, they are designed to have longer length screw caps to prevent leakage. BulletPoint4 : Made of high-quality plastic materials, practical and BulletPoint5 : Our plastic centrifuge tubes are general used in fields of bio, such as separation and preparation of various biological samples. ExternallyAssignedProductIdentifier : 7626938262131 ItemName : 1PC Polyurethane Sample Tube Suitable for 511 Ballast Laboratory 140mm * 31.5 * 3.2- ItemTypeKeyword : science-lab-test-tubes Manufacturer : csauing ModelNumber : Polyurethane sample tube PartNumber : Polyurethane sample tube ProductDescription : 1PC Polyurethane sample tube suitable for 511 ballast laboratory 140mm * 31.5 * 3.2- Warranty: 180 days