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. Includes 12 Chalk Dots Poly Clear Front 10" x 13" pockets with grommet hole.