Book Sox Stretchable Book Cover: Standard Size Green Ecto. Fits Smaller/Thinner Hardcover Textbooks up to 8x10. Easy to Install, Adhesive-Free, Nylon Fabric Protector for School. Wash & Re-Use! PROTECT your valuable hardcover textbooks with Book Sox adhesive-free protective cover. SUPER EASY TO PUT ON and remove from school books. No taping or cutting required. REUSABLE AND WASHABLE. Made from high-strength, durable stretchable nylon fabric for maximum protection and years of protection. STYLIZE YOUR BORING BOOKS with Book Sox innovative, cool, and fun designs. SNUGLY FITS SMALLER, THINNER TEXTBOOKS up to approximately 8" x 10" x 1 (20cm x 25cm x 2.5cm). For Larger textbooks, try our Jumbo sizes.