SchKIDules Magnetic Refrigerator Sheet is the only backing SchKIDules sells that is intended for your refrigerator. All of our hard boards are magnetically "receptive" and operate like a magnetic white board would. In contrast, our Refrigerator sheet is a flexible material that gives your magnets a nice backdrop if you are intending to set your schedule up on your fridge. It also provides a protective surface for parents who may not want the activity magnets directly on the refrigerator door for fear of scratching if the child slides them around alot.