MasterVision 36 x 48 Inches General Format Magnetic Platinum Plus Porcelain 29-Row Grid Planner Aluminum Frame with Accessory Kit (CR0832830A) Magnetic accessory kit included with data cards, date magnets and mini magnet shapes Measures 3' x 4' feet; 44 columns/27 rows Sliding aluminum pen tray keeps pens and magnetic accessories where you want them Easy 4-corner mounting system, hardware included Easy 4-corner mounting system, hardware included