These Hamelin A4 exercise book covers are designed to protect school and work notebooks from dirt, spills, and general wear. Manufactured from clear 150 micron PVC plastic, these transparent sleeves allow for quick identification of the book contents while keeping the cover clean and stain-free. This pack includes 100 individual covers, suitable for standard A4 exercise books used in educational or professional settings. The durable plastic material provides a reliable barrier against daily handling.