This is a roof designed to replace the smooth roof found on Bluford Shops N scale transfer cabooses. The Bluford Shops N scale transfer cabooses are great, but the roof (and some of the handrails) are not true to different railroads. This replacement roof is the kind of roof used on L&N Family Lines (CSX) bay window transfer cabooses. The roof on the Bluford Shops models snaps off with minimal effort and can be easily replaced with this roof. As always, soak the 3d print in Bestine. Also, for additional cleaning on non-delicate parts (like this roof) use a simple toothbrush and tooth paste. If anyone wants this roof in HO, contact me and be ready to provide me with measurements (in mm) of the HO Bluford Shops transfer caboose roof.