Carbiepoles Backing plate SS for 25mm and 38mm Separating mounting base

Backing plate SS for 25mm and 38mm separating mounting base. (For 1.5 inch and 2 inch Separating Mounting Bases). For the 1.5 inch and 2 inch Separating Mounting Bases (for boats), install the Backing Plate underneath the hull for when you’re bolting the Receiver in place – creates a more uniform pull and pressure on the Base and makes it easier to install