Package list 30 x transparent glass test tubes Features -Capacity: 30 ml glass bottle tubes -Product info: Transparent glass test tube -Color: Transparent test tubes -Heat resistant and hygienic: made of glass material, these transparent glass tubes can withstand temperatures and remain hygienic after thorough cleaning transparent glass tubes -Material: Glass, iron bottles with lid -Improved clarity for accurate results: using clear glass tubes, these test tubes allow researchers to achieve reliable results by observing samples carefully leak-proof glass laboratory bottles -Travel-friendly and organized: their elegant design ensures that these empty test tubes remain organized and accessible during travel or field work bottles glass -Size: 7.00X2.80X2.80cm/2.75X1.10X1.10in test tubes leak-proof -Reliable leak prevention system: these sealed bottles feature sealing mechanisms, even when handling volatile substances small clear bottles -Adapted for laboratory efficiency: the moderate volume of these small glass test tubes suits tasks that require careful division of reagents or storage of samples clear test tubes Goods Description small clear bottles Equipped with tight-fitting lids, these small liquid sample bottles maintain integrity by avoiding the risk of spills. small laboratory glass test tubes Designed for optimal performance, these glass bottle tubes and transparent test tubes provide unparalleled visibility for careful monitoring of samples