Supreme Black Widow Spider Rigging System holds up to four rods. Made of 2'' heavy-duty tubing, 18'' tall. Top bar is 24'' long. Includes 4 - 5610 rod holders and a 4-1/2'' mounting track. Mounting track DOES NOT include mounting hardware. The rod is molded into the inside of our heavy duty tube so you can cut down to your desired height using self tapping screws to tread .Comes with 3 set screws to mount the top plate to the tube. Use a custom desired height or the standard 18". This heavy-duty Spider rigging system allows you to spread your rigs for trolling or pulling. "More Lines ~ Less Trouble".