All Uinkit products come with a quality Guarantee. If you have any problems with our laminating pouches , you are welcome to a 100% refund or free replacement. Easy To Use:Just put the document into the pouch and send it through the laminator to seal. No cracks, no bubbles and no wrinkles. Wide Application :Great for children's artwork, photos, flashcards , business cards, library cards, insurance cards,instruction sheets,reusable coupons and more other frequently used documents in the home, office or classroom. Quality: Acid free, Archival quality, clear,photo safe finish Ideal for protecting items from damage , prevent fading, waterproof and tear-proof , rounded corners and sealed on one side. Various Sizes: five different size of laminating pouches , 30 business card sizes at 2.3 x 3.7, 20 ID badge sizes at 2.5 x 4.2, 20 card sizes at 4.3 x 6.3, 20 notecard sizes at 3.7 x 5.3,10 photo sizes at 5.3 x 7.3. All measurements are measured in inches.