High Pressure Laminate Tile writing surface laminated to 1/4" rigid hardboard backer. Whiteboard may be written on with Wet Erase Markers and Dry Erase Markers Blackboards may be written on with chalk or wet erase markers.  Boards are Non-magneticMounting Options: Removable adhesive tape (included with standard order) Permanent adhesive tape (not included with order) Magnets  (not included with order) Velcro  (not included with order) Permanent adhesives  (not included with order)