●External dimensions: 17.7 x 17.7 x 35.4 inches (450 x 450 x 9 ●Inner dimensions: 16.1 x 15.7 x 29.1 inches (406 x 400 x 7 ●Material: Steel plate with melamine baked paint ●Shelf Load Capacity: Approx. 66.1 lbs (30 kg) per piece ●Gas introduction and displacement: Quick fitting for outer diameter 0.2 inch (6 mm) tubes, discharge/quick fitting for outer diameter 0.5 inch (12 mm) tubes ●Accessories: Shelves x 3, Low-humidity Digital Thermometer/Hygrometer (THI-HP) x 1