Features:Plastic graduated cylinder for laboratory testRound Bottom design with screw capsIdeal for samples， food colourings， craft use， etc. These were manufactured for use as centrifuge tubes， and hence are leak-proof. ?The non-wetting interior surface eliminates concave menisci， providing more accurate measurementsThe heavy-duty plastic withstands repeated autoclavingSwitching from glass cylinders to Globe��s plastic equivalents will greatly reduce breakage and the potential for injuryChemically resistant to most acids， bases and many common solventsSpecifications:Graduated in 1 millilitersMark:?1ml 2ml 3ml 4mlMeasure: 5mlDepth: Approx. 5.4cm / 2.13inchDiameter: Approx. 1.2cm / 0.47inchMaterial: PlasticMain Color: TransparentPackage Includes:10 x Centrifuge Tubes