by dat8962 » Feb 4th, '07, 22:11
I'm assuming that you mean the covering?
If this is the case then the answer for card tables is usually baize. Magic tables can vary but are often the same, or have a close up mat on top.
Member of the Magic Circle & The 2009 British Isles Close-Up Magician of the Year
It's not really an optical illusion - it just looks like one!