Features: ---Inside tube diameter: 1.9" - inside depth: 10" ---The ratcheting feature allows for the tube to tilt forward and back 180 degrees and easily secures to your desired position ---3" post connects to a variety of existing spline post bases - also connects with RAM Post and Spline Mount providing a quick disconnect feature and easy rotation ---Integrated lanyard tie-downs for optional tethering to your boat ---Compatible with spinning reels and level wind reels ---Works well with Kayaks to Tournament boats ---Custom designed to handle heavy chop environments ---Great for holding other gear too such as nets, flashlights, umbrellas and more ---Constructed of high strength composite ---Genuine RAM Mount: Part # RAP-394-SSTU ---Manufacturer lifetime warranty ---Made in the USA.