Adequate to Meet Your Needs: You will receive 100 pieces of plastic vials in total. This quantity is sufficient for regular use and replacement, and can easily meet your daily needs. Serviceable and Lasting: Each plastic tube is made of quality plastic, reliable and durable, not easy to deform or break, and can be used for a long time. The surface of the tube is smooth and comfortable to touch, allowing for easy and confident handling. Proper Dimension to Apply: The size of these test tubes with lids is approximately 0.63 inches (16 mm) in tube mouth diameter, 5.91 inches (150 mm) in height without lids, and 6.3 inches (160 mm) in total height, with a capacity of 0.84 oz (25 ml). The size is practical and convenient for use while saving storage space. Good Sealing to Operate: Equipped with secure lids, these tubes provide a good seal, preventing leaks or spills. They can be used to store items such as candies, beads, flavorings, and other small contents, offering a convenient and pleasant user experience. Extensively Applicable Occasions: These plastic test tubes are suitable for various applications, including science experiments, plant propagation, educational activities, classroom laboratories, science-themed events, and more. The test tubes are transparent, allowing for easy visual inspection of contents without opening the lids, saving time and effort. Color: Transparent Material: Plastic Package Contents: 100 x Clear test tubes Note: Only the items listed above are included. Other products are not part of this package. Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.