-Double shell filled with commercial-grade polyurethane materials for optimal insulation -Inlaid sealing ring and nylon lock for added sealing performance -Maintains temperature for both hot or cold food for over 8 hours -95-quart large capacity can hold 6 full-size food pans -12 levels for different sizes of food pans to meet all your needs -Two layers of food-grade LLDPE material shell non-toxic and harmless to human health -An adjustable vent cap equalizes outside and inside compartment press