I recently learned of a product I had never used although I guess it has been on the market for several years. Many of us use clay bars but I now learn there is a clay "towel". The towel is impregnated with the clay and comes in different grits which are somewhat more or less aggressive and the price reflects the change. The more aggressive the higher the cost. The towels are in different sizes but appear to average about a square foot of working surface. It seems that in addition to having a larger surface to work with than a 2" square bar, that if you drop the towel on the ground you simply rinse off the dust or dirt and continue on instead of having to dispose of a dirty bar. If anyone has used the product please share your experiences and comparisons to the clay bar.