Easy to use, push the brim through of the curved slots in our hat bill shaper and let sit overnight then it will stay bent fine, lightweight and, smooth surfaces that wonot harm your hat This brim bender can perfectly bends your hat rims, and easy for your hat to go back to curved Out hat bender brim comes with two options, works with all fitted sizes as well as baseball caps, visors or any other brims Great gift to your father, husband, son, friend, and so on