This Reese Gooseneck Trailer Hitch Accessory Kit features ball, safety chain holders, hole cover, and storage bag. Specifications•Hitch Ball Size (IN):2-5/6 Inch•Hitch Ball Gross Trailer Weight (LB):30000 Pound•Includes Ball Storage Bag: Yes•Includes Hole Cover: Yes•Includes Safety Chain Attachments: YesFitment2011-2025 Chevrolet Silverado 2500 HD2011-2025 Chevrolet Silverado 3500 HD2011-2025 GMC Sierra 2500 HD2011-2025 GMC Sierra 3500 HD Hole Cover Keeps Pop-In Ball Sleeve Free Of Debris Ball Rated For 30, 000 Pound Capacity Compatible With GM OEM Kits With Factory Installed OE Rail System Only | Reese 2-5/16 Inch Diameter Pop-In Ball for GM Gooseneck System