High quality - This workbook cover is made of high-grade plastic and double seamed edges, which is durable and durable. 10 packages. Our multifunctional sleeves are 10 x 13 inches (approximately 25.4 x 33.0 cm), so they can accommodate most student activity sheets, work orders, and ticket orders. Environmental protection: Use these simple, durable and economical dry erase pockets in the classroom, home, office or workplace to turn your printing paper into reusable sheets. Dry erase pockets can save paper, time and money, but the most important thing is that it is good for our environment Easy to use: very suitable for standard 8.5inch x 11inch office paper, just cover the paper you want to operate in the sleeve. Once it is in place, you can use a dry erase marker to draw or write on the transparent vinyl as needed. When you are done, just erase the marks and save them for later use with other worksheets. Colour:As Shown Material:ABS Package Contents: 10 x Dry erase document dry Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.