The Taco Marine ShadeFin Fixed Clamp-On Mount is designed for boats with minimal or no rod holders. It mounts your ShadeFin to 3/4" or 1" schedule-40 pipe or 1-1/4" O.D. tube. This secure, economical mount is manufactured from type-316L polished stainless steel. It's easy to install and comes with a guide notch for accurate ShadeFin placement.• Mfr. Part: T10-3000-11• Easily installed on your existing T-top piping• Polished type-316L stainless steel• Fits 3/4" or 1" schedule-40 pipe• Fits 1-1/4" O.D. tube• Includes self-aligning notch and pin-locking hole• Made in the USA Made from 316L polished stainless steel Easy installation with self-aligning notch & pin-locking hole | TACO Marine Fixed Clamp-On Mount for ShadeFin Made in USA