Installs in seconds and folds into a sturdy package; foldable parabolic reflector protects the cooking tube like a case, equipped with a carrying handle and fully submersible, built for adventure. No fire hazard here. The oven's solar-powered vacuum-tube cooking chamber provides near- insulation, keeping the outside cool even when the inside is hot. Simply load food into the tubular cooking chamber and place the bump on the reflector to cook without supervision. This solar oven preserves the flavor and nutritional value of your food while cooking at 360 degrees (similar to a slow cooker - but faster). It only takes 20 minutes to cook a meal, and can reach a temperature of up to 290°C (550°F) in sunny conditions, effectively captures rays and retains heat. If you see a clear shadow, you're ready to cook! Service: If you have any questions about this product, please feel to contact us, we will reply you within 24 hours!