The Reese Goose Box is THE best choice for those who want to tow their RV with the lightest hitch on the market - your goose ball. This premium replacement pin box attaches to your fifth-wheel trailer and connects to the goose ball in the bed of your truck giving you more space for storing traveling or hauling. This opulent goose box also gives you the most comfortable towing experience thanks to its easy-to-fill airbag dual shocks and rubber springs all located inside the belly of the box. The air ride technology absorbs the shocks and bumps felt with many other towing setups making your ride much smoother and more comfortable. The airbag can be filled easily through the air manifold - or fill spot - located on the top of the Goose Box while its automatic relief valve prevents overfilling. Thanks to the Goose Box's premium lockable coupler you can also be sure your connection is secure. The Reese Goose Box comes in two capacities and replaces the standard pin box on many of the most popular fifth-wheel trailers on the market today. It also offers more vertical flexibility giving you increased height adjustment for taller truck beds. The Goose Box is made of solid constructed steel is tested to exceed all SAE standards. Fifth Wheel Trailer Hitch Pin Box Maximum Strength: This Premium Goose Box Pin Box Has The Strength And Stability To Haul Some Of The Heaviest Loads Around Airbag Technology: The Airbag Can Be Filled Quickly Through The Air Manifold - Or Fill Spot - Located On The Top Of The Goose Box While The Automatic Relief Valve Prevents Overfilling Clean Truck Bed: This Premium Goose Box Replacement Pin Box Attaches To Your Fifth-Wheel Trailer And Connects To The Goose Ball In The Bed Of Your Truck Giving You More Space For Storing Traveling Versatile: Offers More Vertical Flexibility Giving You Increased Height Adjustment For Taller Truck Beds Goose Box From Reese Is Inspected For Quality And Workmanship And Is Tested To Exceed SAE J2638 Standards