The Stirling 4'x4' kit trailer is a perfect solution for the customer who wants to build their own trailer so they can easily customize it to suit their needs. This kit comes with everything you'll need to be on the road, including an axle, frame, tires, fender, lights, wiring, and Certificate of Origin document to register. For increased bearing protection and ease of maintenance, we've included EZ Lube hubs. Our V-tongue will provide you with more stability while travelling. When combined with our Premium Galvalume finish, you can be assured that you are getting the best value and performance possible. After assembling the trailer frame, you can customize it to suit a variety of needs, whether it is as a flatbed, closed box trailer, or regular tailgate trailer (material not included). Basic tools are required for assembly. Galvalume Plus steel offers twice the protection of traditional galvanized steel EZ lube hubs offers ease of maintenance and added bearing protection Stake pockets included with axle kit trailer Assembly required for use Measures 4 ft. x 4 ft. 1 year limited warranty Conveniently shipped in 3 boxes Trailer can be customized to suit a variety of needs Includes registration documentation for convenience DOT Approved and highway rated