I'm not sure what you really call this but it worked great. My neihbor let me barrow this for breaking up my food plot ground maybe someone can tell me more about it. Its got two rows of double sring loaded teeth with reversable tips on each one. Five in the first row and four in the second row offset to the first row. It was red and has the Ford manufacture model tag still on it but you can't read the #s. 8 ft wide and set up for three point hitch. Can anyone tell me more about it and how old it might be?