Made of and designed with six holes, this test tube rack is perfect for laboratory use. The rack and the tubes are all reusable and washable. It is well polished and does not hurt hands when used. A wonderful helper for your experiments, helping you to observe the experimental phenomena in convenient way. Features - - Material: ABS+ . - Size: 15.00X1.60X1.60cm/5.89X0.63X0.63in. - Adopted by materials, sturdy and , lightweight and easy to store. - The rack is a good tool to store test tubes, being able to make your laboratory space more clean and tidy. - With craftsmanship, the surface is smooth and well-polished, no harm to your hands. - A wonderful helper for your experiments, helping you to observe the experimental phenomena in convenient way. - The product is versatile, suitable for many places, such as scientific experiments, laboratory, school chemistry lesson, etc. Package list: 2 racks 12 tubes with stoppers