1.8ml Cryo Vial, Internal Thread, Star Foot, SterileABDOS 1.8ml Cryo Vial, Internal Thread, Star Foot, Silicone Seal, PP, 1.8 mL, Sterile, DNase/RNase and Pyrogen free. - - - ABDOS Internal Threaded Cryovials are specially manufactured to be used at a temperature between -196C to +121C - - - Large white frosted portion for easy making. - - Graduation in silk-screen printing makes identification easy. - - - Unique Star Foot design allows for single-hand operation - - - - ABDOS Internal Threaded Cryovials are Radiation sterilized. - - - Available in self-standing reclosable zipper bags. 1000 per case. - - - Caution: Do not use Abdos Cryogenic vial in the liquid phase of liquid nitrogen. Improper use may cause liquefied nitrogen to be trapped inside the vial and lead to pressure built up resulting in a possible explosion or biohazard release. It can be used in vapour phase of liquid nitrogen.