Our falcon tube is made of high-quality and high-purity polypropylene materials. These containers can be used as a high-pressure kettle test tube, with a maximum capacity of 12000 x g. Easy to mark: The plastic centrifugal tube features a designated white area for easy marking and identification. The design allows convenient label application. Accurate scale: The scale is printed on the side of the test tube, providing accurate and easy-to-read graduations for precise measurement in scientific applications. Leak-proof design: The centrifugal test tube comes with a polyethylene cap that ensures a secure seal and prevents leakage. These containers are shelf-stable and can be reused safely. Sterilized: These large plastic tubes are sterilized and ready for use. They are suitable for safe handling of solids, liquids, powders, seeds, pills, and granular materials. Type: Scientific Conical, 15ML Color: Transparent & Blue Material: Plastic Package Contents: 50 x Centrifuge Tubes Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the actual product. Measurement may vary by +/- 1-3 cm.