The Prostand textbook covers set is designed specifically for 12th-grade students following the Russian curriculum. Made from transparent polyethylene, these covers keep your books visible while shielding them from moisture, dirt, and general wear during the school year. This pack includes ten pieces in total to ensure you have enough protection for multiple subjects. You will find five covers measuring 262x425 mm and another five at 245x357 mm, providing a proper fit for different book sizes in your bag.