

I saw Moriko Morioka cleaning the floor with the rolling thing.

[![rolling1](https://i.stack.imgur.com/CkHFnl.png)](https://i.stack.imgur.com/CkHFn.png)

[![rolling2](https://i.stack.imgur.com/OS15Zl.png)](https://i.stack.imgur.com/OS15Z.png)

But I have never seen that thing in real life that use for cleaning. Actually,
I have seen the rolling thing like that, but it was used to paint the wall
(people dip into paint and roll on the wall).

I wonder what is that thing in real life. Does it exist?


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recovery-of-an-mmo-junkie
What is the rolling thing (in real world, if exist) that Moriko used to clean the floor?


As already mentioned in the comments, **it is a[lint
remover/roller](https://en.wikipedia.org/wiki/Lint_remover)**. In Japan, the
tool is usually called [COLOCOLO](https://www.nitoms.com/en/colocolo/) (コロコロ,
_korokoro_ , which is also [an onomatopoeic word for
rolling](https://jisho.org/search/%E3%82%B3%E3%83%AD%E3%82%B3%E3%83%AD)), a
[generic
term](https://en.wikipedia.org/wiki/Trademark_distinctiveness#Generic_terms)
for "adhesive (carpet) cleaner/roller".

The series also [had some official
merchandise](https://twitter.com/netoju_anime/status/953563458129215489),
including Moriko's Cleaner.

> ![](https://i.stack.imgur.com/4N9GMl.png)

* * *

References:

  * [Japanese live-commentary tweets for episode 3](http://anicobin.ldblog.jp/archives/52315068.html)
  * [English translation of COLOCOLO](https://eigojin.com/2020/12/20/korokoro/) (Japanese)


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answer