【Spring Steel】- Using high quality spring steel, this hay bale spear is good for any size bales and rated at 3600 lbs, a great help in agriculture. 【Powder Coated】- Our spear covers with powder. Each spear is painted black, stamped with the United Bale Spear logo, durable in use and good-looking in appearance. 【Fast & Strong Mounting】- With the theory of high efficiency, this spear is made to improve your work efficiency and is easy to operate. 【Special Heat Treatment】- Forged and heat treated for strength and durability, this spear is designed for maximum strength. 【Wide Application】- It can be used in hay attachments, grapples, buckets, and other skid-steer and tractor attachments for use with farm and construction equipment.