Transparent Plastic Round Bottom Test Tube With Cork Stoppers Empty Scented tea Tubes Specification: Material: Plastic Color: Transparent size:as shown Feature: The glass wall is uniform in thickness and can be evenly heated. Meet your high requirements for chemical laboratory equipment. The surface is smooth and has no convexity, and the bottom of the bottle is round. The test tubes are very easy to clean and can be reused. Wide range of applications. Glass test tubes are not only used in the laboratory, but also for many other purposes. You can store chewing gum, candy, snacks, etc. as a party item, or you can store bath salts, spices, etc. in the bathroom. Lightweight , simple design. Plastic transparent test tube with cap. Package included: 50 x Plastic Test Tube With Cap Note: Please allow 1-2mm errors due to manual measurement.