how to clean a back case

[brijuhaha]

So i got a smart feather case from incipio. Love it, but i got the wrong color, GREY! and i just found some ink on its surface. It's small but it's really annoying and i want to keep it clean. Any idea on how to clean the ink from the incipio smart feather case?

Thanks

 

[Garz]

I have same case. I use damp cloth to wipe it down. Ink on the other hand, I am not sure what's best to remove that.