4 meters Subtiller for most 3 point hitch.
Easy to assemble.
For additional seed-disc as pictures, UH Horsch Pronto seed units can be used. (not included)
Tines and roller is ordered seperatly here (part 2/2):
https://www.shapeways.com/product/XX4U6Y7Q9/4-meter-subtiller-for-1-32-part-2-2-tines