{HEAD ~ Pull cords} are located within each central space for drawing {TAIL ~ the elongated items} through the sleeves once positioned within a duct 
{ HEAD ~ Pull cords } are located within each central space for drawing { TAIL ~ the elongated items } through the sleeves once positioned within a duct
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH