This is a crutch that you use by holding it under your arm like a walking stick. The blue padding is to reduce pain when it hits your armpit. There is also cushioning inside the padding, but you can remove it if you are concerned about the appearance or don't need it. Supporting your weight with your armpit can compress the capillaries and important nerves in your armpit, and crushing them can cause nerve paralysis. Please be careful not to put too much weight on your armpit when using it. As you can see in photos 4 and 5, there are places where the paint is peeling and traces of paint. This is a set of two, but it is also possible to sell one. In that case, it will be 20,000 yen for one. I will post the product specifications later.