Feature: 1. Premium Material: Test tube holder is made of 304 stainless steel, can be used to store test tubes in the laboratory, can withstand the wear and tear of the laboratory. 2. Lightweight And Portable: The stainless steel test tube holder is lightweight and durable, compact and easy to carry, ideal for science classrooms and home use. 3. Fine Workmanship: Test tube stand has a highly polished surface with no edges or tip corners, prevent chemical corrosion and designed for professional laboratory use. 4. Applications: This rack can hold test tubes up to 32mm in diameter, up to 6 test tubes, and can also be used in the kitchen to store spices or utensils in addition to the laboratory. 5. Easy To Use: 3 layer design of the laboratory test tube stand rack allows for easy insertion and removal of tubes. Saves a lot of space by placing test tubes in an orderly manner. Specification: Item Type: Test Tube Holder Material: 304 Stainless Steel Product Size: Approx. 13 x 9 x 8.5cm / 5.1 x 3.5 x 3.3in Use: can hold maximum diameter of 32mm/1.3in test tubes, ideal for classrooms, science laboratory and home. Package List: 1 x Test Tube Holder Note: Manual measurement, please allow 0.04‑0.08in error.