The kursi extends over the universe (quran 2:225) and hadith says it is like a ring in a desert compared to the arsh, so how then will we see the latter on qiyamah and how can. And the arsh, is the throne itself. They are not comparable to human concepts of throne and footstool, there is nothing comparable to allah, he is beyond our ability.
There are interpretations that say that the kursi, is just the leg of the throne. 知乎,中文互联网高质量的问答社区和创作者聚集的原创内容平台,于 2011 年 1 月正式上线,以「让人们更好的分享知识、经验和见解,找到自己的解答」为品牌使命。知乎. Arsh and kursi are part of the mutashabihat.