Fully Adjustable rod holder with over 9" of stainless steel jacketed composite construction, accomodating all rods. Attaches to any Scotty Downrigger Boom.Main features:Heavy Duty Stainless SteelUnique Side or Deck Mounting Bracket with new Lock Down FeatureTilts up and down, including upright for rod storage when travellingLess missed strike opportunitiesSwivels 360 degreesLocks closed for travellingIncludes the No. 344 which has a sealed base for watertight applications(such as kayak decks) with splash cover. For all Scotty post mount rod holders.Diameter: 3 3/4"Bolting Dimensions: 2 3/16" x 2 3/16" WARNING: This product can expose you to chemicals including NICKEL (METALLIC) which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov.