I have an old HP mouse that is model number M859PU and the aged rubbery wheel has rotted away to the point that I had to remove it entirely.  This is a replacement that should be printed in flexible filament without support and slipped on from one side as pictured. 

Profile dimensions have also been provided in case you have another mouse that matches what I fixed here.  Please note that this rubber ring slips over a mouse wheel disk with a diameter of 20.8mm.

Print without support using '0.10mm DETAIL' setting in flex filament.

If you found this useful, it would bring me great joy to see your work - so be sure to share. :)

Or, just buy me a coffee: 

[https://www.buymeacoffee.com/Julius3E8](https://www.buymeacoffee.com/Julius3E8)

OR… better yet, please feel free to dump a bitcoin or two here:

1Py3TUeR8noBN2giHyFV1GfB6x3Kh2WEVv

... include a note to the effect of "Hi Julius3E8, thanks for the [insert name of thing]... my life has improved five-fold on account of it and please accept this paltry amount in gratitude".

You're welcome! (in advance) :D

Also, feel free to peruse my other submissions which are almost as varied as they are many:

[https://www.printables.com/social/320993-julius3e8/models](https://www.printables.com/social/320993-julius3e8/models)

[http://www.thingiverse.com/Julius3E8/designs](http://www.thingiverse.com/Julius3E8/designs)

Enjoy!