Double Magnetized Dry Erase White Sheets - 12" X 18" - 1 Sheet White Dry Erase Magnet Sheets Double Magnetized on the Front and Back Sheets will stick to magnetic receptive surfaces and will hold magnets on the front Strong 60 mil Magnet - Includes 1 (One) Sheet with Rounded Corners Gloss Finish - True Dry Erase Finish - Wipes clean when using dry erase markers Don't be confused by competitors selling regular sign vinyl sheets as dry erase. Before you buy - make sure it is a dry erase product