TACO Stainless Steel Clamp-On Adjustable Rod Holder – 1-1/16″ & 1-5/16″ O. Stainless Steel Clamp-On Rod Holder Stainless Steel Type 316 Polished Features and Benefits. Adjustable clamp to fit multiple pipe and tube sizes. For use on vertical and horizontal pipe/tube. Rotate and lock in fishing angle. Rotates and locks every 18°. Form-fitted PVC White Liner. Specifications: Clamp Fits (Outside Diameter): 1-1/16″ & 1-5/16″ O. (Tube) Location: T-Top Ring, Leaning Posts, Poling Platforms Rod Holder Inside Diameter: 1-5/8.