Color-coded polystyrene inserts snap into recess in top of screw cap on Nunc CryoTube Vials Can be marked with 5151Y50 series Cryomarkers. Not usable with CryoTube Vial II.

Molded of high-impact polystyrene with friction-fit top Available in 5 and 10-place sizes for 1-2 mL vials

Permanently notate samples and storage boxes with Thermo Scientific™ Cryoware Permanent Markers and Pens, which can easily withstand cold storage temperatures.