(I have made a reinforced version here: https://www.thingiverse.com/thing:3158086 )
This is a toilet paper holder with extended arms. It fits into my original holder which is too shallow to fits a new roll of toilet paper. I believe that this can also be hanged on the wall with properly installed hooks.
I haven't printed the bar, as I already has one for my original holder. In the photo you can see that there are knobs at the end of my bar, so I added a hole in each arm in my print. The model I've uploaded here does not include the hole.
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