Keep a detailed schedule with the easy-to-use data card system, Type up to four lines on a data card slip it into the magnetic card holder and position on the board where needed, Customize the board further with magnetic day date and month headings, White porcelain on steel dry-erase board has a 1 x 2 blue fused-in grid to align card holders, Additional Card Holders and Data Cards sold separately, Aluminum frame, Includes mounting hardware, For Use With: Data Cards MAVDC202M Series Magnetic Card Holders MAVMCH1220P Series, Surface Color: Blue/White, Frame Color: Silver, Grid Rows: 47, Grid Columns: 35, Board size: 72""W x 48""H, SKU: AZRMAVOB4872B