This is a continous roll of 3M red 400 grit sandpaper.  3M's line of red sandpaper combines performance and value. Each roll is 2 3/4" wide by 25 yards long.  It has a sticky backing to attach to your sanding blocks and longboards. If you want to purchase multiple grits to save on shipping, do add to cart and continue shopping.  It will only cost $1.50 more shipping per roll, which applies to all the red 3M sandpapers.  We will gladly combine shipping for you on all of our other products as well.  If it doesn't add up right, let us know by message or calling our tech line at 831.426.2017 M-F 8am to 5pm