This Waterproof Clear book cover, won't affect eyesight and it Helps identify the right book easily while being Light in weight and won't add any weight on your books Making the book easy to carry. This Clear self-adhesive book covers are made of high quality and safe CPP materials suitable for every age and its simple so even children can use this covers. Eye-catching light weight design that will not make your book heavier and will even give it a high grade finishing look and is appropriate for all type of book and will help you maintain clean book covers. Very easy to install and is ideal for covering books, novel, bible, documents, presentations, reports, note book etc; for school, office, home, work, and much more. High quality clear self-adhesive protective book cover is designed to protect your books, documents, presentations or reports from spills, stains and regular wear and tear. Read Less