Tiger A4 Clear Strong Plastic Protective Exercise Book Slip On Cover Jackets X 3, Size: 306Mm x 210Mm Jackets designed to fit standard a4 books. Jacket size = 306mm x 210mm Clear 150 micron thickness with 60mm overlapping flap Simply slip the book cover into both jacket flaps for a neat fit protective cover that is weatherproof and wipeable Non-adhesive and reusable. Can be written on with permanent marker or customised with stickers etc