Poly Pockets feature a metal grommet for easy hanging, and a write-on/wipe-off surface with a clear front pocket! Teachers and students can use holders as reusable dry-erase pockets. These pockets are great for practicing math problems, letters or writing skills. Use to display pictures, documents, artwork, keep track of assignments, organization and more! Measures 10" x 13". Sold as a pack of 10 pockets.