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. They can be displayed like any chart with Ashley Smart Tak™, pins, tacks, staples, etc. The surface is designed for dry erase and water based markers and washable crayons. Chart measures 17″ x 22″ with a dry-erase, glossy surface, .45mm. The Multi-Use Big Notebook Paper Classroom Charts are great to use for memos and notes in the classroom, office or home. A multi-functional organizer. This set includes 5 charts: Plain Notebook Paper (92001), Light Yellow Notebook Paper (92013), Light Blue Notebook Paper (92014), Spiral Notebook Page (92015) and Clouds (92017).