CURT hitch adapters can be used for many different purposes when hitching up a trailer. Whether a ball mount shank is too small or too large to fit into a receiver tube, a CURT adapter can make up the difference. Their adapters are built with exceptional strength and designed to be precisely fitted for their application. This CURT receiver adapter/extender converts a 1-1/4" x 1-1/4" receiver tube opening to a 2" x 2" opening. It installs easily and provides 6-1/4" of extra clearance for a bumper or spare tire. It has a tongue weight capacity of 350 lbs. but is not intended for towing use to pull any amount of gross trailer weight. All CURT adapters are constructed using our quality manufacturing processes. They CNC-form each unit, weld it together using advanced robotic systems and then mechanically descale every surface to make each adapter smooth to accept a finishing coat. To finish off this adapter, they give it a durable black powder coat finish to ensure it has excellent rust, chip and UV resistance. | Curt Receiver Tube Adapter (1-1/4" to 2" Shank, Not for Towing Use, 6-1/4" Length) #45785