Chief Steamer 2.25 Inch Round Horse Hair Brush. Works great in areas where you do not want to scratch the surface such as leather, vinyl, sensitive fabric and more. Many car detailers use this to gently scrub the paint surface without scratching when cleaning with steam. Can great help in removal of tree sap, bugs, salt, and other dirt and grime. Be sure to dedicate one for the inside of the car and the outside of the car. The soft horse hair bristles will not scratch but will hold up very well.