Once you weld a tube connector into your tube, if you smooth out the welds, all you'll see is a small allen bolt which looks a lot better than the normal exhaust flanges that people use to connect tubes together on a sand rail, dune buggy, rock crawler, or mud buggy. Tube connectors are the easiest way to make a section of a chassis removable. Many of our customers use tube connectors on the rear of their cars for easy engine removal as well as for light bars and front bumpers. Made from 4130 chromoly. Additional Details ------------------------------ Product description: Once you weld a tube connector into your tube, if you smooth out the welds, all you'll see is a small allen bolt which looks a lot better than the normal exhaust flanges that people use to connect tubes together on a sand rail, dune buggy, rock crawler, or mud buggy. Tube connectors are the easiest way to make a section of a chassis removable. Many of our customers use tube connectors on the rear of their cars for easy engine removal as well as for light bars and front bumpers. Made from 4130 chromoly.