This 3M Sanding Block is a great addition to any auto body enthusiast's toolkit. The rubber construction ensures a comfortable grip while sanding and the 5 inch size allows for easy maneuverability. This kit comes with a 90 day seller warranty and includes one sanding block. The manufacturer part number is 05519 and it is sold as a unit. Get your hands on this high-quality sanding block kit to achieve professional-level results on your auto body projects. Please note, my name has been inscribed in black sharpie, which may or may not come off with lacquer thinner. Buy more of my tools to combine shipping.