This is a plastic book cover that made of materials, so it is very durable. It will protect your books from greasy fingers, dust, pen marks, dirt, and grime. The transparen design make can help you to find out the books you want easily. It will not cause pollution to nuture in that it is made of Environmentally-friendly materials. Features - Color: Transparent.- Material: Plastic.- Size: 43.00 x 30.00 x 0.10 cm/ 16.90 x 11.79 x 0.04 inch.- This is a plastic book cover that made of of materials, so it is very durable.- It will protect your books from greasy fingers, dust, pen marks, dirt, and grime.- The transparent design make can help you to find out the books you want easily.- It will not cause pollution to nature in that it is made of Environmentally-friendly materials. Perfect for students' exercise book, note book, book.- Easy to operate, simply the book cover into both cover flaps. A perfect product for students and your kid.Packing list: 10 x Book Cover