Hook-Over Feeder is ideal for field, pasture, trailer or stall. It easily hooks over any "2X" fence board and also has a center notch for hanging around a vertical fence post up to 2" in width. Made of rubber blend, this Feeder is more crack-proof, crush-proof and freeze-proof than plastic. 13.25" long X 6" wide X 5.4" high. Wt. 2 lbs.