Special Features
Holder, vial, cryogenics, nalgene for 1.0, 1.2, 1.5, 1.8, 2.0 or 5.0 ml vials molded in numbers and letters give positive vial identification, stackable, autoclavable, bottom of each well interlocks with nalgene cryogenic vial's base to prevent vial turning when closure is opened or closed