Features: Detachable Test Tube Rack with easy assembly allows flexible configuration for varying lab needs, featuring a 3tier design to organize multiple tube size efficiently. Engineered with high strength corrosions resistant plastic, this lightweight rack ensures long lasting durability and stability through widened antislip base construction. Essential for researcher, educators, and medical professional requiring adaptable storage solution in dynamic laboratory or clinical environment. Optimizes workflow in busy labs, classroom experiments, and diagnostic centers where secure tube placement and space efficiency are critical. Three tiered compartments accommodate diverse specimen containers vertically, reducing bench clutter while maintaining quick access visibility for time sensitive procedures. Specifications: Component: Plastic Hole Diameter:Approx.13mm/0.51in, 16mm/0.63in, 18mm/0.71in; (Optional) Features: Three-layer structure, Removable design for easy storage and transportation; Package Includes: 1pc Test Tube Rack note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.