Adequate to Meet Your Needs: You will receive 100 pieces of plastic vials in total. This quantity is sufficient for regular use and replacements, 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 about 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 dimensions are practical and convenient for use, without taking up excessive space. Good Sealing to Operate: Equipped with secure lids, these tubes provide a good seal, preventing leakage or spillage. They can store items such as candies, beads, flavorings, and other small contents, offering a convenient and reliable user experience. Extensively Applicable Occasions: These plastic test tubes are suitable for a variety of applications, including science experiments, plant propagation, classroom laboratories, science-themed parties, and carnival events. 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: Light reflection and differences in display screens may cause slight variations between the color of the item in the image and the actual product. Measurement may vary by +/- 1-3 cm.