We carry 3 of the major brands of Hose Reels or Travelers in the market. Each on has a little different design but they all work the same. They all consist of a Drum that holds the Poly Hose, a Poly Hose to carry the Water to the Sprinkler, and a Turbine Pump that Reels the Poly Hose back onto the Drum as you Irrigate the Area that you want.