Proper fueling of an aircraft is important to any flight operation! To prepare both mentally and physically to ensure fitness for flight, start the process by filling the Auxiliary Tank with coffee, tea, or your favorite hot or cold beverage. This 16 oz. double-wall insulated ceramic cup has a silicone spill-proof lid which seals in place to help insulate and prevent the contents from escaping. Cup and lid are both microwave and dishwasher safe.