SelfSeal laminating sheets provide a perfect way to laminate your letter-size documents without using a machine. Documents can be accessed for up to 24 hours after the initial seal to reposition your item or smooth out bubbles and wrinkles in the laminate. After 24 hours, the laminating pouch seal becomes permanent to provide durable protection for your important or frequently used items. Cold laminating sheet is self-adhesive for fast, easy lamination. Sheets retain flexibility while providing adequate protection against wear and tear.