Extra Large to accommodate more information, Color code with data card inserts, Kit includes:, e3 Porcelain board with 2"" x 3"" vertical accented blue fused in grid lines, 1 3/4"" x 3"" magnetic cardholders (larger to hold more information), Data cards in 5 colors: Blue, Yellow, Lime, Salmon and White, Month, Day and Date headings, Hanging hardware, Size: 48"" x 72"", Vertical Columns: 23, Horizontal Rows: 23, Cardholders: 150, Data Cards: 1000, SKU: MAGNAV242