These 50ml clear glass test tubes with screw caps are essential for any laboratory setting. They for sample testing and storage, providing a secure and airtight seal. The transparent glass allows for easy observation of the contents, making them ideal for scientific research, experiments, and educational purposes. Features -Color:Transparent -Material:Aluminium, glass -Size:10.00X3.00X3.00cm/3.93X1.18X1.18in -Material: crafted from transparent glass, these jars are and allow for clear visibility of the contents, essential for accurate sample observation -Size: with a 50 ml capacity, these jars are ideal for small sample storage, making them for laboratory use, diy projects, and more -Lid: the screw caps ensure a tight seal, preventing leaks, which for maintaining the purity of your samples -Set: this you have plenty of containers for various uses, from scientific experiments to home storage solutions -Application: for storing and testing samples, these jars are a for laboratories, hobbyists, and anyone needing reliable small storage solutions Package list: 30 x Tiny Jars with Aluminum Screw Lids