I have some that look just like those. I am pretty sure they are made of plastic. But I'm not sure exactly which item I have because my wife ordered them on her account.
I don't have any problem with mine so maybe it is your skin :-) I know I have a lot of trouble with the new logitech touch mouse's surface getting sticky from my skin oil.
Last edited by jduck; 05-10-2012 at 09:12 AM.
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