If you've purchased a hat, but it is just a bit too large. Now you can to get a perfect fit! Two 24 inch rolls are include. Perfect for completely filling the circumference of the inside. They are self adhesive on one side with 1/8"-thick durable quality. Peel the back and place inside your hat's sweatband where you need it" snagged-up". These can reduce the size down by 4-3 sizes without the hassle of returning the hat. Comfort, Soft and breathable sweatband. Used by Professional Hatters.