CHC Command Boards Sturdy Full Color Dry Erase CHC Command Boards are a must for quick deployment of ICS positions.   Features:          Dry Erase          Full Color          Rugged Flight Panel Backing          Aluminum Framed *NOTE -These Boards Require the Use of Sharpie EXPO Dry Erase or Marks-A-Lot Dry Erase Markers ONLY! Any Other Dry Erase Markers May Damage Board. Permanent Markers Will Damage Board.