Marine grade 304 stainless steel rod holder. Marine grade 316 clamp-on bracket. Mirror finished stainless steel construction,for maximum corrosion resistance and durable. Length = 9" (228.6mm) I.Diameter = 1-5/8" (41.3mm) Adjustable Range :7/8"-1" (22mm-26mm) Features: ?High Quality?- Made of 316 stainless steel, Mirror Polished Finished, for Longer service life. ?Friendly Design?- Rubber insert to protect rods from wear. ?Easy to install?- Just Tighten the bolts to fix the Rod Holder on the rails. ?Easy to use?- Can be mounted to vertical or horizontal rails;Adjustable for rails 7/8"-1" (22mm-26mm). ?Drain holes?- Can make your Rod Holders to stay Dry and Clean. Package Includes: 1 fishing rod boat holder Listing and template services provided by inkFrog