This clear test tube and rack is an essential tool for scientific experiments, ideal for classroom demonstrations and laboratory use. Its transparent design allows for easy observation of contents, making it ideal for chemistry experiments. The sturdy construction ensures stability, while slots provide ample space for organizing test tubes efficiently. Features -Color: Transparent+ Random Color Lid -Material:Plastic -Size:17.00X13.00X5.00cm/6.68X5.11X1.97in -High transparency design: the clear design allows for easy identification of tube contents, enhancing efficiency during scientific experiments and classroom activities -Material: made from durable plastic, ensuring reliable performance in various laboratory environments -Stable and secure structure: designed to prevent test tubes from tipping over, reducing the risk of spills and accidents during experiments -Versatile educational tool: ideal for both students and researchers, supporting learning and innovative scientific exploration -Multipack set: includes multi racks to accommodate multiple test tubes, ideal for diverse applications like chemistry analysis and biology studies Package list: 6 Sets Tube and Rack