This trailer hitch receiver tubing is designed for use with 2-inch square receiver hitches and measures 10 inches in length.It serves as a tow bar mount for campers, caravans, RVs, and trailers.The tubing features a square mouth with an inner diameter of 2 inches (52 mm), an aperture of 0.64 inch (16.3 mm), a wall thickness of 0.23 inch (6 mm), and is constructed from molded steel.It installs directly into compatible 2-inch receiver openings without modification and is secured using standard anti-loose hardware.The design matches the dimensional and functional requirements of for mounting tow bars and related accessories on recreational vehicles and trailers.