The Rupes DA Fine Yellow Foam Polishing Pad is designed for use with a 5" backing plate, featuring a 6" face for efficient and effective polishing and buffing of automotive surfaces. Made by the trusted brand Rupes, this polishing pad is the manufacturer part number 9.DA150M and is sold as a single piece. With a diameter of 5 inches, this high-quality pad is a must-have tool for automotive detailing and care, ensuring a smooth and shiny finish for your vehicle.