The RAM-114-RB consists of the RAM ROD® 2000 fishing rod holder, ratchet arm
with single open socket and 2.5" diameter round base that contains the
universal AMPS hole pattern. Offering the patented RAM rubber ball,
socket and ratcheting feature, you can rotate the rod holder 360 degrees,
while tilting the cradle forward and back for the optimum angle.
4-Hole AMPS: 1.181" x 1.496"
3-Hole 120-Degree: 1.812" Diameter