These stainless steel racks optimize space and organize biological sample. These racks are compatible and adaptable to any storage format (boxes, racks) and all type of cryogenic storage equipment (refrigerators, freezers, deep freezers, nitrogen tanks). These racks have alignment rods to secure boxes in position. Stainless steel construction make is free of rust, easy to clean and looks good aesthetically. Available in 6 different sizes of shelves in vertical array for the convenience of end user according to their need.