The Driftmaster Li'l Pro Series 3/8" Thread Flat Rail Base for 1" or wider flat rails can be used on any flat surface. Especially great on pontoon boats, its 3/8" diameter threaded center hole holds any Li'l Pro Series rod holder. Features 3/16" diameter mounting holes. Driftmaster Li'l Pro Series 3/8" Thread Flat Rail Base - Marine Accessories at Academy Sports
