This Scotty Rodmaster original Tube Style Rod Holder is fully adjustable rod holder, 8″ long and with a generous 2-1/8″ opening to fit even the fattest rubber rod butt tips. It comes with Bolt-Through Style Boom attachment. Features: – Tube Style Rod Holder Construction – Fully Adjustable – Engineered with Rugged Non-Corrosive Materials – Generous 2-1/8″ opening to fit even the fattest rubber rod butt tips – Bolt-Through Style Boom Attachment – permits mounting on booms – Fits Scotty Downrigger Booms: 3/4″ to 1 in size – Easy to Install: bolt the rod holder through the hole in the downrigger boom, making sure the rod holder tube is on the left side of the downrigger boom. Specifications: – Type: Boom Rod Holder – Mount Type: Bolts-Through Style Boom Attachment – Rod Holder Tube Length: 8″ – Rod Holder Tube Diameter: 2-1/8″ – Fits Scotty Downrigger Booms: 3/4″ to 1″ in size. Includes 3 #230 Power Lock rod holders, post bracket and a #241 Side/Deck mount. Fully-adjustable multiple rod holder comes with a built-in lure and accessory rack. Gives quick access to your lures and tools. Made from fiber reinforced nylon. (3)Sometimes we may send small gift for you, please keep it if you get some gift from us. And hope you like it. Anyway, thanks so much, enjoy shopping.