Goture Stainless Steel Clamp-On Fishing Rod Holder for Rails 3/4&rsquo;&rsquo; to 1&rsquo;&rsquo; Uses a clamp-on design that allows for easy relocation; No drilling is required for installation The Rod Holder mounts on vertical or horizontal rails from 3/4 to 1 in diameter Accomodates almost every rod angle Features a 9 tube, clamp, and screws of stainless steel and a black plastic collar; Inside diameter of tube is 1-2/3 No big water trolling system is complete without a high-quality and rock steady rod holder; Free your hands with these durable stainless steel Pisfun Rod Holders