Ali Industries 4419 CeraMax 9" x 11" Ceramic Sanding Sheets, 400 Grit, Yellow These premium ceramic sanding sheets provide maximum performance and long life. The tough ceramic grain is bonded to a flexible latex paper making it perfect for hand sanding of irregular surfaces. The anti-clog coating reduces the build-up of sanding dust and particles, keeping the grain exposed for increased performance. Features Sheets can be cut-to-fit 1/2 sheet, 1/3 sheet, or OE sheet sanders 400 grit sanding sheets are ideal for light sanding before the final coat 400 grit is best for light smoothing of latex and oil based paints, polyurethane, lacquers, and varnish Heavy duty latex backing is durable and flexible for improved hand sanding on irregular surfaces Ceramic is a tough and durable grain that is recommended by professionals for sanding a wide variety of materials including wood, metal, fiberglass, and painted surfaces USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.