Blu-Velvet Ultr-Soft Microfiber Applicator Pad - Package of 4 A 3 inch x 4 inch foam pad covered with super-soft, terry loop, 75% Polyester and 25% Polyamide blend Microfiber. The edge binding is ingeniously sewn so as not to leave a seam that can scratch. This pad is a great way to safely apply cleaners, glazes, waxes and even liquid protectants. Use one with your favorite wheel cleaner to scrub stubborn brake dust without scratching your expensive alloy rims. When dirty, wash in warm soapy water, rinse thoroughly with water, squeeze out the excess water and air-dry.