This is approximately 240 lbs. of solid ,magnesium, which just so happens to be one of the exotic metals that we can work with. With magnesium being even lighter than aluminum, at 240 lbs. you know this weldment had to be huge! It consisted of two 3″ x 3.5″ bars attached to a 1.5″ thick plate, all 40″ long. The welds wrapped all the way around the bars. in all it was about 175 inches of weave welds! Not bad, huh?