Sopema double 600 is one front harrow used to prepare the seedbed. You can use this harrow in the front of the tractor and put other tool in the back of the tractor, for example: other harrow, one power harrow or one sowing machine. When you are working with this implement you can not go fast, so you must work at 15 km / h at most. The recommended power of the tractor in order to work with this and implement other tool in the back of the tractor is: (190-230hp) but the tractor Could have less hp if only works with double Sopema 600 and anything in the back. The Sopema brand is made in France.