Ideal for boat trailers that are too long to fit inside a garage, these high-performance zinc plated hinge kits convert standard trailer tongues into fold-away configurations while keeping the existing coupler. Delivers strength at the pivot point with precisely machined heavy-duty hinges made from die cast steel. Easy to install bolt-on application includes all mounting hardware. 5-Year warranty. Tongue Size 3" x 3" Max Load 5000 lbs.