Handy, lightweight, highly efficient. Portable, can be easily carried. For shipment of lab materials. For experimental work with refrigerated, frozen, and cryogenic materials. Holds Liquid nitrogen for cryogenic precedures. Thes compact, table top dry ice keepers can also be used to transfer dry ice to remote lab locations from the central dry ice storage site with maximun protection and minimum loss of product. These units have the same high effiency expanded polystyrene foam insulation, moded in one seemless piece. Complete with outer shell of 275 lbs. test, sturdy fiberboard case, snug-fitting lid and sling carrying strap.