This test tubes is made of high quality material for durable and reusable purposes.The transparent plastic tubes comes with screw cap and is easy to seal and grind.Each plastic tube is fitted with a lid and pressure sensitive foil, which provide an excellent seal and resist moisture and tightness.The precise design ensures the practical implementability in the work of high performance.Dimensions: approx. 14 x 2.5 x 3 cm (l x w x h).Volume: 40 ml.Each tube is capped, suitable for the storage of liquids, samples, handmade products.Material:plasticcolour:transparentPackage Contents:30 * plastic test tubes30 * aluminum screw closuresOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.