Freezing unit for 20 straws 0.5 ml These mailers are rigid

These mailers are rigid

Designed for veterinary professionals

Next day shipping worldwide available

Clear scale markings to enable precise dosage

snap-on lid

Freezing unit for 20 straws 0.5 ml These mailers are rigidThe freezing units are compact and easy to handle. They are made of a styrofoam box of high quality, an inner container of stainless steel and a floating rack. The stainless steel container is filled with liquid nitrogen. The rack keeps the needed distance between 0. 5 ml or 0. 25 ml straws during the first down phase, while it floats on liquid nitrogen. After that, the straws get manually immersed into the nitrogen.