High-Quality Material: These centrifuge tubes are made from premium PP material, ensuring safety, non-toxicity, durability, and easy sample storage. The smooth surface minimizes liquid absorption and residue, guaranteeing accurate experimental results and improving efficiency. Package Includes: You get 100 transparent conical tubes with lids. This ample supply ensures long-term use, eliminating the hassle of running out of containers during experiments. They're perfect for storing liquids, extractions, or protein separation from sample matrices. Ideal Sealing Performance: Each plastic tube features a secure lid, minimizing sample contamination and preventing evaporation or leakage. Preserve your experimental liquids for future use, making these tubes invaluable lab assistants. Transparent Walls: Each microcentrifuge tube has a 1.5ml capacity with clear, standard markings. The transparent design allows easy identification of different chemicals, ensuring accurate dosage and test precision. This thoughtful design helps prevent mistakes. Multiple Applications: These centrifuge tubes are suitable for storing solid or liquid materials. Ideal for sample collection, laboratory experiments, and various applications in food coloring, clinical chemistry, research institutions, and crafts.