Features: graduated cylinder for test Sharp Bottom design with screw caps Ideal for samples, food colourings, craft use, etc. These were manufactured for centrifuge tubes, and hence are leak- The non-wetting interior surface eliminates concave menisci, providing more accurate measurements withstands repeated autoclaving Switching from glass cylinders to 's equivalents will greatly reduce breakage and the potential for injury Chemically resistant to most acids, bases and many common solvents Specifications: Graduated in 0.5 milliliters Measure: 15ml Depth: Approx. 12cm / 4.72inch Inner Diameter: Approx. 15mm / 0.59inch Material: Main Color: Transparent : Random Package Includes: 5 xCentrifuge Tubes