This test tubes is made of high quality material for durable and reusable purposes.<br> The transparent plastic tubes comes with screw cap and is easy to seal and grind.<br> Each plastic tube is fitted with a lid and pressure sensitive foil, which an seal and resist moisture and tightness.<br> The precise design ensures the practical implementability in the work of high performance.<br> Dimensions: . 14 x 2.5 x 3 cm (l x w x h).<br> Volume: 40 ml.<br> Each tube is capped, suitable for the storage of liquids, samples, handmade products.<br> Material:plastic<br> colour:transparent<br> Package Contents:<br> 30 * plastic test tubes<br> 30 * aluminum screw closures<br> Only the above package content, other products are not included.<br> Note: Light 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.