The True North® Mini Coolers protect temperature-sensitive samples at the bench or in the freezer. The Mini Coolers are ideal for keeping PCR reagents, enzymes, and other biochemical reagents cool while working at the bench. They are filled with insulating gel, and they can also be used for controlled sample freezing and for longer temperature retention samples. • Cooler has rubber non-slip feet • Gridded and keyed one-position lids for easy sample identification • 0.5 mL tube adapters supplied as standard with the 0.5‚Äì2.0 mL tube size versions