This Ambar School A4 book cover, 85 microns thick and sold in a pack of 5, is the practical solution for protecting school textbooks from wear, moisture, and dirt throughout the school year. The 85-micron thickness ensures durability without making the cover too rigid, facilitating application to books of varying thicknesses. Sold in packs of 5, it's ideal for protecting several textbooks at once at the start of the school year. An economical and functional choice from Ambar to keep school books in good condition throughout the school year.