Description With this test tube set, you can observe and learn the basic science behind the phenomenon.The small test tubes, made of reliable PP material, more durable and sturdier in your daily use, not easy to get broken, so won't affect your daily use. Features -Color:Brown -Material:PP -Size:4.80X1.10X1.10cm/1.89X0.43X0.43in -Capacity:1.5ML - The test tube is sturdy, anti-wear and durable in use. Widely used in scientific experiments. - The lightweight and compact design of the test tube makes it easy to transport, use and store. - These test tubes are perfect for scientific experiment, multi-function and practical. - Brown tube body, light-proof design, effectively protects samples from the influence of light. - The tube is convenient for you to use, sufficient quantity enough to meet your daily use needs. Package List20 x Testing Tubes