RAM® 楔形球頭轉接器 適用於 RAM®、Attwood 及 Fish-on 底座 - C 尺寸

The spline post design gives a much tighter grip on my existing base than I expected. It’s a simple upgrade but makes a noticeable difference in how stable my electronics are on the boat.

The wedge ball clicks securely into my Fish-on base with zero wobble, and the C size is compact enough for my kayak setup. I mounted a small GPS unit in under five minutes using the spline post, and it's held firm through choppy water all afternoon.

Finally, a wedge ball adapter that actually locks into my old Attwood base without any wobble. The C size fits perfectly for my medium-sized electronics, and the spline post keeps everything secure even on bumpy rides. Much more stable than the universal ones I've tried before.