[WhiteFang]

A clay bar is basically just that - a bar of clay. It's somewhat soft (think silly putty) and is used to remove "stuff" that manages to get on the paint but won't wash off. Kind of like a beauty bar for your truck. You use it after washing and before waxing. I've never gone so far as to use one, but I did watch a demo once on how they work. It did make a difference on the vehicle they were using. Made it nice and smooth...