Features Compared with hand-operated air pumps, this foot pump only needs to borrow your body’s weight to perform air inflation easily. It is as simple as walking. Connect the hose to the blue nozzle to inflate the balloon. But many inflatable products also have the need to deflate, such as swimming rings and camping mattresses in winter. At this time, you only need to connect the hose to the red nozzle. The foot pump is suitable for baby swimming pools, camping mattresses, inflatable boats, air cushions, beach swimming rings, fitness balls, etc.