Langley Models Modern Tractor + spray boom N Scale UNPAINTED Metal Model Kit A26 Modern Tractor and spray boom. N Scale 1:148 UNPAINTED Model Kit. Farm Vehicles Scene. Unpainted Model Kits - Requires Painting / Assembly IMPORTANT: Image shows finished model -It is NOT supplied like this. Tiny detailed models. If dimensions are not present please ask. If in doubt about Size / Dimensions / Scales / Ratios - Please ask before purchase.