The Hay Grazer's spring-loaded design re-creates natural grazing to provide a more natural, comfortable way for your horse to eat hay. Wire grid requires the horse to pull the hay out a little at a time for slower, healthier eating. This promotes better digestion, reduces boredom, and keeps the horses head out of the hay for less dust inhalation. The Hay Grazer also can reduce problems associated with ground feeding such as parasites and sand colic. Eliminates waste to save you money and keeps hay compact to save space. Measures 28.13 inch long by 13.38 inch wide by 27.8 inch high. Made of heavy-duty galvanized metal to prevent rust and corrosion. Easily mounts to a fence or wall at ground level with brackets supplied (lag screws and thumbscrews required but not included).