ShopNilight Trailer Hitch Extension Riser for 2 Inch Receiver with 4 Inch Rise or Drop with Bolt Nut Clip 7,500 lbs Capacity Adjustable Extend 5″ 7″ 9″ Length Matte Black Powder Coated in high quality, support 2 Years Warranty. Made of sturdy steel, black powder coating provides durability, full edge welding instead of ordinary four-point welding, add electrophoresis process before powder coating to withstand rain, dirt, UV damage, and other corrosive threats, ensure a longer service time and make it perfect for outdoor use.