49 Square Hay Bale Spears (a Pair). GREAT ASSET FOR YOUR FARM. With the striking weight capacity of 4,500 pounds each, these carefully-engineered 49 bale spears easily penetrate hay bales of any shape, with their tapered heads, improving your efficiency. Constructed of high-strength silicon-manganese spring steel, these solid bale spears have undergone meticulous forging and are blackened for superior durability and corrosion resistance. EASY TO INSTALL & REMOVE. Our maneuverable hay bale spears easily attach to and remove from the quick attach hookups and hitch receivers of your equipment thank to the precision sleeves and nuts. This compact set of bale spears accommodate a variety of farm implements including skid steer tractors, loaders, and trucks to make them even more useful than they already are.