EMOJI JELLY BALLOONS. These re-usable jelly balloons work just like a balloon, but better!!! To start, insert the supplied nozzle (yellow plastic piece) into the valve of the ball. To inflate, put your mouth over the nozzle and blow. Ball will expand to 10 inches. When expanded, remove the nozzle and the valve will seal itself. To deflate your Jelly Balloon Ball, just re-insert the nozzle into the valve until all of the air has escaped. Store the balloon with the nozzle for further use.