Smart Poly® material has been designed for charts in the classroom and home. These charts are strong, durable, water resistant, and do not need lamination. The write-on/wipe-off surface is designed for use with dry erase or water based markers and washable crayons. Great for reusable learning and organization. Use with clothespins, magnets, etc. to keep track of daily classroom lunches (clothespins/magnets not included). Clip chart measures 9" x 24" with a heavy duty, washable surface. Grommet hole at the top for easy hanging. Use with Ashley Smart Tak®, pins, tacks, staples, etc. as an alternative to hang in the classroom. Glossy surface, .45mm.