Feature: 1. [Versatile Test Tube Rack] This 28 well test tube rack features two different hole sizes suitable for 15ml, 50ml centrifuge tubes and laboratory tubes. 2. [Detachable Design] The test tube holder can be easily disassembled and assembled, providing convenience for storage and transportation, making it ideal for use in different settings. 3. [Sturdy Construction] Constructed from premium plastic, this plastic centrifuge tube holder is sturdy and lasting, with a temperature range of ‑20 to 70℃ (cannot be boiled), resistant to acids and alkalis, ensuring long term use. 4. [Multipurpose Use] Suitable for holding test tubes, perfume bottles, lip balms, pens, and ink samples, this test tube stand is perfect for scientific laboratories, classrooms, and home use. 5. [Reliable Tube Storage] This detachable test tube rack provides secure and stable storage for various laboratory tubes, enhancing efficiency and organization in laboratory environments. Specification: Item Type: Multi-functional Test Tube Rack Material: Plastic Use: Our centrifuge tube bracket has two different sizes of holes, which can be used for 15ml, 50ml centrifuge tubes, and laboratory test tubes. Application: Widely used in scientific experiments, laboratory experiments, separation and preparation of various samples. Suitable for measuring liquids and extracting a certain volume of liquids. . Package List: 10 x Tube Rack Boards20 x Support Rods