Features:Plastic graduated cylinder for laboratory testSharp 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:Mark:?0.1ml 0.5ml 1ml 1.5mlMeasure: 1.5mlDepth: Approx. 4cm / 1.57inchDiameter: Approx. 1cm / 0.39inchMaterial: PlasticMain Color: TransparentPackage Includes:10 x Centrifuge Tubes