The Center Rigger has proven to be an effective tool when trolling. It should be the highest outrigger when the others are deployed in the fishing position. Its line runs straight down the middle with its bait being the farthest back. The Center Rigger bait, more often than not, is the one struck after the other baits have streamed by. The AL7001CR (1-3/8"ID) is the solution for boats with a tower or when a lower angle is desired. It has a slightly larger footprint (4"x 7"). Ruggedly constructed from marine grade anodized aluminum. It can be easily attached above or below the standing platform or any flat surface. It comes in a standard angle of 22 degrees that gives it a low rise. Anodized in Bright Silver it is as strong as it is attractive.