Here is a guide/video that shows you how to install the Oxygen cursor theme.
To install the Oxygen mouse cursor theme open a Terminal window and copy+paste the following line:
sudo apt-get install oxygen-cursor-theme oxygen-cursor-theme-extra
When installed you can change the mouse cursor (pointer) by opening your Appearance Preferences manager (System -> Preferences -> Appearance) and select the Theme tab. Click on the Customize button and select the Pointer tab, scroll down a bit and you will find/see the Oxygen pointers. To use an Oxygen pointer just click on it and close the Appearance Preferences window.
but OMG be careful, Oxygen is a KDE theme! The Gnome people may melt! (I would if I installed a GTk theme on my KDE!!) 😀
how to uninstall this mouse cursor? seems it has bug on gnome
You can remove them by going to usr/share/icons and in that folder you’ll find some folders starting with oxy- To remove the folders you need to be root.
To remove them all in one time time type:
in your Terminal window