Scotty 469 The 470 Stainless steel Rocket Launcher rod holder comes without mount. Tilts up and down, including upright for rod storage when travelling. Less missed strike opportunities. Rocket Launcher Inside Diameter: 1.70". All post mount Scotty Rod Holders are fully adjustable up and down, rotating 360 degrees. Bolting Dimensions: 1 5/16" x 3 3/16".