These test tubes are versatile and can be used as sample vials to store various substances such as essential oil, perfume, and sample, depending on your needs. The screw cap design that these small vials not easy to leak and can be easily carried around, catering to your different requirements. Features -Color:Transparent -Material: -Size:16.00X1.70X1.70cm/6.29X0.67X0.67in -Capacity: 20ml -These tiny vials are crafted from sturdy materials, making them reusable for extended periods of time. -Small size and lightweight design make these testing tubes ideal for travel and easy to store in your purse or bag. -Each test tube is equipped with a screw cap, making them suitable for storing different small sample no matter liquid or solid. -The leak-proof sealing cap the safety and convenience of the item inside, without any concerns of leakage. -The clear design of these small vials allows for easier identification of the contents and approximate amount inside. Package list: 10 x testing tubes