Each manikin functions on the principle of clearing a blocked airway with forced air generated with the proper procedure - abdominal thrusts or back blows. Once the object is lodged in the airway, the student must use the anatomical landmarks to decide where to place their hands and how much pressure is required to accomplish the maneuver. With the appropriate force applied, the students are rewarded with the visual confirmation of an expelled object. Manikin includes rib cage, xiphoid process, suprasternal notch to provide anatomical reference, two foreign bodies for airway obstruction, shirt, and soft carry bag. Clothing and bag are fabric U.S.A. Size: 24 in. x 14 in. x 9 in.. Three-year warranty.