30 Degree flush mount rod holder is made of /304/ Stainless Steel material and it’s one of Smith’s “economy” Holders.  This Mirror Polished rod holder is great for fresh water or light saltwater rods. Features: UV resistant black PVC cap and liner. It has 9" deep tube and 1-9/16" inside diameter, also 1/4" /304/ stainless gimbal pin. These rod holders need 3/16" screws for mounting. (Not included)