It is quite similar to a Wobble Board but the difference is that you can perform tilting only about one axis (not in any direction as Wobble).
The reason is obvious – Rocker Boards are intended mainly for beginners and seniors, people who might have difficulties if pursuing some advanced training device right away.
Even advanced users will benefit from using it but if you are not fully confident with your balance skills, I would highly recommend to start with this board. 😉
It`s made of wood and uses a different base – instead of a firm fulcrum there are two adjustable "buttons" so you can set the level of difficulty as you like. This is a great advantage but of course – the price is higher.