Blue and Yellow Wipers refer to a specific type of cleaning cloth that is commonly used in the automotive industry. They are typically made from a combination of blue and yellow fibers, with the blue fibers being more abrasive and the yellow fibers being softer and more absorbent.The blue fibers are designed to help remove tough dirt, grime, and grease from surfaces, while the yellow fibers are better suited for wiping away excess cleaning solution and water. This combination of fibers makes blue and yellow wipers a popular choice for cleaning automotive parts, such as engines, wheels, and tires.