cryoking 1.5ml clear polypropylene sterile cryovials with external thread and blue caps assembled. cryovials have writing patch and marked graduations. 25 cryovials/bag, 20 bags/pack, 2 packs/case

Feature:

• Material These lab vials with caps are made of polypropylene; can be repeatedly frozen and thawed.
• Easy to Read and Write These lab tubes have a white writing area and black graduations.
• Features DNase & RNase free, endotoxin free, foreign DNA free.
• Working Temperature These vials are stable from -196℃ to 121℃; Suitable for liquid nitrogen freezing (gas phase).

Do not use cryogenic vials in liquid phase of liquid nitrogen. Ideal for cryogenic sample storage in vapor phase of liquid nitrogen.