These Tee Bar sanding blocks provide a large, straight, and flat sanding surface which won't wear out. They are easy to hold, can be used over and over, and are permanently anodized. These blocks can help provide straighter and truer surfaces. The self-adhesive sanding strips can be cut to any length, are clean and neat, do not need glue and do not peel. Furnished in handy 3" wide x 5 yard rolls and are available in various grits.