Completely airtight and moisture-proof. “Sealtight” door made of highly polished 18-8 stainless steel, with three sides of 3/16" glass. Manual relief valve normalizes pressure in cabinet before opening door. Indentations on top surface for stacking and storing. Includes two shelves made of Flexboard, 8 x 93/4", with twelve 7/8" holes. Stainless steel desiccant tray, 8 x 9x 5/8", holds approx. 454g (1lb.) desiccant. D1360-2 is the same as D1360-1 except it includes two stainless steel shelves.