Bel-art stak-a-tray system small tray 186100470, 7″l x 14″w, stainless steel, 1/pk modular rack and tray system maximizes storage for petri dishes and cell culture flasks in incubators, cold rooms or on the bench. Perforated trays allow air flow and slide easily in the rack. All parts are stainless steel; autoclavable at 121c (250f). Racks and trays sold separately.