Cole-Parmer Natural Freezer Boxes, 100 Place, Polypropylene, 5/pk GO-06755-22

• Featuring reinforced lock and seal for secure storage • Reinforced triple hinges prevent cracks or breaks • Bold, black alpha-numeric printing allows accurate tracking of samples • Click fit lock ensures box will not open accidentally -- large clasp allows easy opening with gloves Boxes withstand temperatures from -80 C to 121 C, and will not degrade after repeated thaws. Each box features an alphanumeric grid on the exterior and interior, stacking rings and a matte surface suitable for markers or labels. Available with clear or fluorescent colored lids with clear bottoms for easy visual identification. Boxes accommodate 0.5, 1.5, and 2.0 mL microtubes and most brands of cryogenic vials. Black box is suitable for light sensitive samples.