Walt's Carpet & Upholstery Scrub Brush was designed to be a great all purpose interior brush. This scrub brush has1.5" Polypropylene coated crimped bristle for resistance to cleaning chemicals. These chemical resistant bristles give you a longer durability with the life of your Upholstery & Carpet Brush. With always getting in and out of your car your carpet take the biggest beating and this upholstery brush is just what you need to clean and help rejuvenate your interior. A 6 inch brush designed for easy grip will help allow you to get almost anywhere to in the car to clean.