This trailer is designed for FSI boats up to 850 pounds. Includes: D.O.T. approved lighting, dual safety chains, fully adjustable winch stand, small winch, 11ft web strap with ring lock, 2X4 Padded Hull support cradles, 2X6 transom support pads. Weight: 170LBS, Tire Size: 4:80 X 8 "B”: LR, Coupler size: 1-7/8 inch. Assembly at end user location needed by end user at end user expense.