Failure to adhere to the above requirement for large/bulky items, may result in automatic order cancellation. Marinebaby 360 Degree Adjustable Fishing Rod Holder Clamp on Marine Boat Rail Unique Modern Design: Fully adjustable, 360-degree rotation around Specifications: Length: 10″ Inner diameter: 1-1/2″ (38mm) Clamping Range: 7/8″ – 1″ (20mm – 26mm) Tube Rail. Material- Marine Grade 316 Stainless Steel, Polished to a bright mirror finish, Beautiful appearance, strong and durable. Adjustable-360 degrees rotation around. Can be mounted to vertical or horizontal rails;Clamping Range: 7/8″ – 1″ (20mm – 26mm) Tube RailPlease check as much as possible to make sure the item is the one that you need. Robust Insert- protect your fishing pole from any wear against the stainless surface. Clamp on boat fishing rod holder? Trumpet Fishing Holder Boat Rod Holder Clamp to fit 7/8″ to 1″(20mm-25mm) Tube. Stopper slot -Gimbal Pin built into the base of the rod holder to located the rod butt into position. Dimention-Tube length:10 inch(258mm); white inner diameter:1.8 inch(46mm). Clamp range from 7/8 inch(20mm)-1 inch(25mm). 1 fishing rod boat holder. Listing and template services provided by inkFrog.