Three-layer design makes it very convenient for you to insert or take out test tube. Its feature of easy disassembly and installation will not waste your time. The detachable feature makes it very convenient for you to carry and store. 60 holes can allow you to put many test tubes at once. Made of plastic material, it is anti-rust and durable to use. The length of this product is 25cm, the width is 10.6cm and the height is 6.5cm. It is suitable for laboratory, science class, school and so on. It can hold 60 test tubes with a diameter less than 16mm. Item Name: Test Tube Rack Material: Plastic Color: White Features: 60 Holes, Detachable, Easy to Clean Size Details: Size: 25cm x 10.6cm x 6.5cm/9.8" x 4.2" x 2.6" (Approx.) Hole Size: 1.6cm x 1.6cm/0.6" x 0.6" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Test Tube Rack