Brocraft Pontoon Boat Rail Mounted Rocket Launcher / 4 Fishing Rod Holder for Boat High quality, mirror finish marine grade aluminum with CNC construction Conveniently store fishing rods away from deck traffic. Rail mount fits the following diameters: 1-1/4" square tube and 7/8" To 1-1/2" Round Rail Shiny looking anodized coating on all aluminum parts, product is good for saltwater using Very nice looking and would suit any style of boat