N Scale Package includes one front and one rear coupler. this conversion fits: Rivarossi, CON-COR, Dimi-Trains: SW-1500 Cow or Calf (powered or unpowered) CON-COR: Bay Window & Extended Vision Caboose ATLAS: Extended Vision Caboose. This kit includes unassembled T-shank couplers with draft gear box adaptors and coupler box clips, to be used in existing draft gear boxes.