Under the principle of not to hurt the paint surface,and remove mild scratches in the paint,and all kinds of stubborn attachments such as tar and GLUE to easily DIY paint color paint defects Use: 1.First paint to clean and dry. 2.Squeeze a small amount onto the abrasives on the sponge. 3.Appropriate force sanding scratch site. 4.Until the scratches disappear or are shallow. 5.With a dry towel to clean the finish.