7x9" Clay Infused Microfiber Decon Mitt.  Simply prep the pad on a glass surface with a lubricating spray to remove the protective layer applied to the clay material.  Once preped you are good to go.  Then you can use either a good lubricating spray or a more concentrated soapy water solution to help glide the clay material across the vehicle surface.  Simply move the pad back and forth across the vehicles surface to remove any unwanted contaminates.