✔ Microcentrifuge tube rack is made of polypropylene, acid and alkali resistant, thickened material, durable, washable and reusable. 

✔ Insert the vials into the compartments of the vial holder. When you need to access a specific vial, simply locate it within the rack and gently lift it out. 

✔ Economical and space saving tube rack, suitable for laboratory or home. 

✔ Note: Ensure that the tube rack is completely dry before reusing or stacking.