The originator of the Rockhound licensed it to Bobcat to build. When the license was up they started KEM and started to make the rakes again themselves. Bobcat then cut a deal with them to just make the Rockhound rakes and label them so the rakes all come out of ND. They make a great rake. Rugged and easy to use. I especilly like the removeable tooth bar so now when you break a few off, you can just change the section out. Skid Steer Solutions has sold these for years and all of our customers love them.