Makita has an expanding system of vacuum accessories to keep your job site or workspace clean. The 10-pack of Fleece Filter Dust Bags is for use with the 36V (18V X2) LXT® Upright Vacuum model XCV19 (sold separately) to serve as an additional filter. The sliding seal traps debris inside the bag for easy disposal and a double-stitched on the seams to ensure durability. They are easy to install and are made of durable fleece for long product life