Depending on what picture you are looking at, there are between two and five different hoses. In the five version, there are three on the right and two on the left. The right side has two coming out of the rear of the sloped side piece and one coming out of the top resin piece. The left side has two coming out of the rear of the flame thrower. Most pictures simply show the hoses running up the sleeves, but I've seen a few going back to the jet pack. Where to attach them I do not know.