Especially made for kayaks. Shorter than those designed for boats to keep your reel higher and drier. It also means they fit better in shallow draft kayaks.
The flange dimensions are 59mm wide x 100mm long. The kayak requires 145mm of internal clearance for fitting.
Internal rod tube depth is 135mm and a molded internal gimbal pin is fitted. The bottom is completely sealed for use on kayaks.
These come ready to install with a self sealing adhesive gasket and self-tapping screws.