Quickly update and change data with U Brands Data Card Paper Inserts. These data card refills are the perfect blank canvas for you to organize your workspace for maximum efficiency. To use, simply tear away the label from the sheet, write your message and insert into you magnetic label card holder. Height: 1″; Width: 8.5″; Sheet Size (W x H): 8.5 x 11; Color(s): Assorted.