Fixed frame 21_ wide. Fits 5 hp and up. Weighs 75 lbs. Constructed by Aldo Biagioli of Italy. Clamps and shanks can be added, removed and slid left, right, up and down on the frame. come with 2 removable/adjustable caster wheels for depth control. Frame can be adjusted to free float (oscillate) or can be locked with plane of tractor axle.