What is a ladder-like practice tool called in Japanese?


I often find a ladder-like practice tool as shown in the following figure in
many dojos or sport halls in Japan.

[![肋木 wall
bars](https://i.stack.imgur.com/2RQtT.jpg)](https://i.stack.imgur.com/2RQtT.jpg)

What is it called? As a bonus, what is it for?




I believe these are 肋木 _rokuboku_ "wall bars".

As to what they are for... to climb up and down. More info on
[Japanese](https://ja.wikipedia.org/wiki/%E8%82%8B%E6%9C%A8) or [English
Wikipedia](https://en.wikipedia.org/wiki/Wall_bars).




I believe these are 肋木 _rokuboku_ "wall bars".

As to what they are for... to climb up and down. More info on
[Japanese](https://ja.wikipedia.org/wiki/%E8%82%8B%E6%9C%A8) or [English
Wikipedia](https://en.wikipedia.org/wiki/Wall_bars).

