DescriptionThey're simple to fill and the lids fit tight, no leaks. Good transparency, accurate measurement scale. Great choice for general-purpose and laboratory use, adapted to centrifuge and widely used in clinical chemistry, molecular biology, bio-chemistry and other experiments and research.Features- Color: Transparent.- Material: PE.- Size: 11.25X1.65X1.65cm/ 4.42X0.65X0.65inch. -Note:Random Color of the Lid. - It is made of PE material, which could be used for a very long time.- 15ml capacity, the test tube is perfect for working with liquid samples. - Featured with screw caps, providing a safe, reliable and leak-resistant seal. - Transparent tube design, easy to observe, more convenient and practical to use. - Suitable for hospital equipment, scientific experimental consumables, etc.