Fold-Away couplers provide space saving alternatives for easy storage. Reduces length by 34" for trailers with 3500 lb. and 5000 lb. gross trailer weight. Allows 34" of the trailer tongue to fold-away, letting a boat trailer fit inside most smaller garages using it's unique patented offset design. Z-Max 600-hour clear zinc finish for corrosion protection. Meets SAE J684 requirements. Easy to install bolt-on application with complete instruction manual. Includes all mounting hardware