5Set 40‑Hole Plastic Test Tube Rack Assembled Detachable Sample Bottle Rack Holder for Laboratory 20x20mm

Feature: 1. Made of sturdy plastic, although light in weight, it is very durable in use. 2. The capacity is large, the size of a single hole is about 20x20mm, and it can hold 40 test tubes in total. 3. Easy to assemble, the shelf has 3 separate parts for easy disassembly and assembly. 4. It saves space and can be stored together or unpacked and laid flat. 5. Convenient to carry, the three‑layer design allows easy insertion and removal of the tube, and easy to clean. Specification: Item Type: Test Tube Rack Material: ABS Purpose: Load test tube Hole Size: Approx. 20x20mm 0.8x0.8in Number of holes: 40. Package List: 15 x Test Tube Rack Board5 x Manual Note: 1. Please allow 1‑2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.