2 each 3-stall roundhouses (dimensions of each: width in the rear 200 mm / 7-7/8", width in the front 100 mm / 3-15/16", length 140 mm / 5-1/2", height approximately 50 mm / 2") which can be converted to 6-stall locomotive sheds, or can be added to 89982 to make 9 or 12-stall locomotive sheds. These cardstock building kits are precision laser-cut from high-quality architectural quality cardstock and can be built with cements available from your local hobby dealer. Also included are 6 special sections of track to stop the locomotives automatically.