Cryotubes External Thread Skirted + Seal 2ml (100)

2ml cryogenic storage tubes with an external screw thread, integrated seal, and skirted base for secure handling and leak-resistant sample storage at ultra-low temperatures. Uses: Storage of biological samples such as serum, plasma, blood, cells, and DNA/RNA. Cryopreservation of cell cultures and laboratory specimens. Long-term storage in ultra-low freezers and liquid nitrogen vapor phase. Sample collection, transport, and biobanking applications.