• The package includes 30 transparent plastic tubes with cork stoppers and 2 small funnels, ideal for daily use and replacement. • Includes 66 labels to label and manage the test tubes. • Dimensions: 1.6 cm in diameter and 16 cm in length, with a capacity of 20 ml per tube. • Made of premium quality plastic, durable, non-toxic, and as transparent as glass, but unbreakable. • The cork stopper fits perfectly, providing an airtight seal that prevents air and liquid leakage. • Versatile: suitable for storing liquids, powders, jewelry, candies, seeds, beads, or samples. They are also perfect for laboratory use, plant cultivation, party decoration, and as home ornaments. • Ideal for developing children's scientific interest.