The Scotty brand No. 476 Rocket Launcher with Side-Deck Mount (241) is a fully adjustable rod holder over 9 inches long. All plastic composite construction accommodates most rods types (stainless steel sleeve version by special order). Troll with a line following while paddling. This classic rod holder tilts up and down, swivels 360 degrees, point forward, aft, outboard and can be set upright for rod storage when paddling to your destination. Rocket Launcher Interior Diameter is 1.70 inches. Mount Dimensions is 4 x 2 x 2 inches. Mounting Hardware is not included. Scotty Rocket Launcher Rod Holder Video.