A dangler is a term for the part of a traditional G or J tube that extends out from the abdomen. Danglers, or long tubes, are typically between 7 and 10 centimeters (2.5 to 4 inches) in length. It is anchored inside the stomach or intestines using a bumper or a balloon that is filled with water. The end of the dangler has different sized ports to put formula or food through.