Amazon.com : Expo 81803 Liquid Cleaner, White Board Care, 8 Once Capacity, Pack of 10, Removes Ghosting, Stubborn Marks, Shadowing, Grease and Dirt from Whiteboards, Blue Color : Health & Household
Whiteboard Cleaner Spray (8 fl oz), The Best for Removing Shadowing from Dry Erase Boards, Chalkboards & Liquid Chalk Markers - Safe & Non-Toxic, Made in USA by Essential Values (8 oz - 3 Pack) : Office Products - Amazon.com
Whiteboard Cleaner Spray 8 fl oz (12 Pack), The Best for Removing Shadowing from Dry Erase Boards, Chalkboards & Liquid Chalk Markers - Walmart.com