The bars we rig with are made with the finest quality spring steel, stainless ring eyes, and custom center pieces. We have found over the years that the spring steel works significantly better then titanium. The spring steel bars springs back and forward causing the lures pulled off the end of the bar to literally swim back and forth towards and away from the main line down the middle. They come in two gauges of wire. The narrow bar is used for 6 inch squid and mini-mamba bars and the wider gauge bar is used for 9 inch squid and green machine bars.