=Tube base 7 holes for 2.0ml, 15ml, 50ml conical bottom tubes, for supporting the conical centrifuge tubes used in the laboratory tests. 
=Headers have a variety of colors: light green, dark green, blue, white 
=Accordance with the standards of 2.0ml micro centrifuge tube, a standard 15ml conical centrifuge tube, a standard 50ml conical centrifuge tube design holes 
=Headers porous design, which can be equipped with 3-hole 2.0ml micro centrifuge tubes, 3 holes and one hole 15ml centrifuge tube 50ml centrifuge tubes 
=Frustum-shaped product design, product placement stability at high 
=Can withstand temperature range: -80 ℃ ~ 121 ℃ 
=It made of medical grade polypropylene, reusable cleaning use

Ordering Information 
Dust sealed bags, easy to open use 
Each package has lot to facilitate quality tracking 
Use with anti-press 200 pounds, high-quality packaging cartons, better protection product 
Gamma ray sterilization or disinfection Optional