SeaSucker did the work for you and souped up their basic 3-Rod Holder to give you in-shore trolling power. The added an extra 4½" SeaSucker and two of their Buttresses to give it double holding power and additional torque resistance. Rated to pull over 200 lbs, this unit will easily hold any 3 offshore rods and will let you do some light trolling too. Rod holders have a 1 3/4” I.D., are 12” deep and are pinned at the bottom for slotted rod butts. Some assembly may be required.