The BulletProof 2-5/16" Threaded Ball features a 1" threaded shank that is 2" in length with a lock washer. It provides a connection point for your trailer coupler. Made from high-strength, heat-treated steel and features a chrome plating that provides enhanced corrosion resistance. Rated for up to 14,000 pounds of trailer weight and up to 2,000 pounds of tongue weight. The BulletProof Threaded Balls can be used on the BulletProof Light Duty Drop Tang Attachment or anything with a 1" hole.