Hitachi 725400 7-1/2-Inch by 1-1/2-Inch Wool/Acrylic Polishing Bonnet Tie-On Made with a blend of lamb's wool and acrylic Used for polishing and buffing 7-1/2-inches in diameter and 1-1/2-inches thick Use in combination with a 7-inch sander Comes with a 30-day limited warranty Well-built with a simple design Made of 50-Percent wool and 50-Percent acrylic Does not tear or rip Quick setup is intuitive Comes with a 30-day limited warranty