Developing the perfect towel, for a particular use, has been my never ending quest. Why is this important? Because, it makes a huge difference in how your "surface product" (Speed Shine®, polishes, waxes and water) buffs out, and whether or not they damage your delicate surface. That's why you'll see many specialized towels throughout our website. When using our Spray-On Car Wash, I strongly recommend using it with our specially developed Spray-On Car Wash Towels. These towels are incredibly soft and keep potentially harmful grit away from the paint surface. Washable, to use over and over again. Set of 4, 15 3/4" x 15 3/4" cloths.