3",6",12",18",24" Aluminum backing plate
Recommended if you are going to use down-riggers or have thin walls on our boat.
This added support is recommended for the 6 inch, 12 inch, 18 inch, and 24-inch mounting tracks.
The longer tracks spread the strength out and a backing plate is usually not necessary.
If you wish to use backing plates with tracks 36 inches and longer we recommend that you use the 3-inch ones.