1Made of high quality plastic, light weight and detachable 260 holes test tube rack can holds 60 tubes of diameter less than 16mm 3Easy to disassemble and install, convenient to carry 4Three-tier design permits convenient insertion and removal of tubes 5Durable and long service life, easy to clean Description: If you are an scientist or doctor who regularly tests liquid, you must know what it's like to knock over a test tube. This rack is very useful for doing multiple tests at once without spilling, and is also great for drying out the test tubes after cleaning, as there are vent holes on the bottom. This items is an economical and space-saving rack for you. Features: Made of high quality plastic, light weight and detachable. 60 holes test tube rack can holds 60 tubes of diameter less than 16mm. Easy to disassemble and install, convenient to carry. Three-tier design permits convenient insertion and removal of tubes. Durable and long service life, easy to clean. Specifications: Material: Plastic Color: White Size: 25 x 10.6 x 6.5cm / 9.84 x 4.17 x 2.55" Hole Size: 1.6 x 1.6cm / 0.62 x 0.62" Weight: 175g(approx.) Package Includes: 1 x Tube Rack Note: 1. Please allow 1-3mm 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.