RAM Tube 2000 Holder with Flush Mount Tube Dimensions:Inner Diameter: 1.94"Length: 10.0"Height: 10.75"Width: 4.5" Material:High Strength CompositeFishing Remendations:The primary intention of this mount is for either fresh water or salt water usage. Product : RAM MOUNT RAM TUBE 2000 HOLDER W/ FLUSH MOUNT Manufacturer : RAM MOUNT Manufacturer Part No : RAM-301-FU UPC : 793442030123