ShadeFin Fixed Clamp-On MountFor boats with minimal or no rod holders, mount your ShadeFin to 3/4" or 1" schedule-40 pipe or 1-1/4" O.D. tube with the Fixed Clamp-On Mount. This is a secure and economical mount manufactured from Type-316L polished stainless steel. It's easy to install and comes with a guide notch for accurate ShadeFin placement.Features:. Easily installed on your existing T-top piping. Polished, Type-316L stainless steel. Includes self-aligning notch and pin-locking hole. Made in the USA. 1-year limited warranty