5Set Test Tube Rack, Plastic Test Tube Rack 90 Holes Sample Bottle Holder for 13mm Laboratory Test Tubes

Specification: Item Type: Test Tube Rack Material: ABS Purpose: Load test tube Single Hole Size: Approx. 13x13mm / 0.5x0.5in Number of holes: 90 Package List: 15 x Test Tube Rack 5 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.