This stainless steel freezer rack holds standard sized 2 inch cryoboxes, both cardboard (81 or 100 place), 81-place polypropylene, and 100-place polycarbonate boxes in aconfiguration of four rows deep by five rows high. Our metal freezer storage racks are constructed of high-quality, corrosion resistant stainless steel. Handles at both ends accommodate freezers with right or left handed doors. Dimensions:22 5/8 x 11 x 5 1/2 inch in(550 x 280 x 140 mm) They will NOT accommodate 100 place hinged polypropylene (plastic) boxes. Our racks have been configured to fill all major ultra low (-80°) freezers on the market.