4 Lakes Systems Multi Troller electric Downriggers. All 4 have swivel bases. Two have 3' booms and push button pads the other two have 5' booms and toggle switches for functions. I fished on the boat these were on about 5 years ago and they worked great. I purchased them that winter and they have sat on a shelf since. They are ready for a new home. Just recently powered them up and displays all work along with function selections and up/down just as they should. $350 for all 4