[Transparent plastic reagent tubes] These test tubes are made of transparent plastic, non-toxic, odorless, clear, and leak-proof, allowing you to easily observe the contents. The screw cap features a secure closure that is durable for long-term use and keeps contents safe and protected. Plastic test tubes are more shatter-resistant than glass alternatives. [Easy to clean and reusable] These 100 ml test tubes with screw caps are easy to clean and reusable. Simply wash with mild soap and water to prepare for reuse. This helps save time and resources, making them a sustainable choice. [Good sealing, moisture- and leak-proof] These test tubes feature screw caps that can be tightly secured to prevent spills, making them suitable for storing liquids and other materials. They are moisture-resistant, airtight, and leak-proof, providing reliable protection against leakage and contamination. [Suitable for storing lotions] These plastic test tubes are ideal for storing lotions, creams, cosmetic samples, liquids, gels, and other beauty products. Their compact size makes them convenient for carrying in a handbag or backpack, offering a practical storage solution. [Multifunctional application] These plastic test tubes can be used to store small craft items such as beads, sequins, and pins. They are also great for organizing snacks, nuts, pills, spices, tea, salt, candies, chocolate pieces, and more. Color: Transparent Material: Plastic Package Contents: 15 x Test tube Note: Light reflection and different display settings may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.