Covers for textbooks 5-7 class set 8pcs ZB.4724. Covers for books made of smooth transparent polyethylene with a density of 200 microns. This cover will protect your books from dirt, dust and mechanical damage. Package quantity: 8 PCs (3 covers with unregulated boxes and 5 covers with adjustable fields). Transparent field. In set: 220 * 255mm (adjustable field) - 3 PCs; 185 * 255mm (unregulated fields) - 3pcs; 185 * 210mm (adjustable field) - 1 PC; 180 * 230mm (adjustable field) - 1 PC.