Fellowes laminating pouches are designed with quality photo safe materials providing excellent clarity and durability to preserve and protect important documents. These pouches are dry erase friendly and compatible with all thermal laminator brands.Quality Laminating Sheets: Each 3mil Thermal Laminating Letter Size Laminating Sheets provides clarity and durability for your most important files—no bubbling or curling in sightReliable Protection: Preserve and protect important documents and photos from dust,dirt,and other debris in sturdy laminating pouches designed with quality,photo-safe materialsDry-Erase Friendly: Write directly on the water-resistant pouch with dry-erase markers and easily wipe away any markingsConvenient : These pouches are compatible with all thermal laminator brands100+ Years of Innovation: Driven by a commitment to quality,Fellowes is dedicated to developing solutions to help you be at your Letter Size,3mil,9 x 11.5 inches,200 pouches per package.