Mainstays 18 oz Food Jar Set Thermos is a food storage cup set that comes complete with main canister, fork and knife and separation cup. Thermos has a tight locking fit to ensure food does not leak or spill in transit. Sleek and easily stored and it has a smooth interior which allows for easy and safe cleaning for future use. Thermos is light weight and flexible (ie. very durable) Thermos is a great Insulated Food Container for busy travelers.