Quartet Matrix Magnetic Modular Whiteboards, 34 Inches x 23 Inches, Silver Aluminum Frame (M3423) Magnetic boards offer dual functionality as both a dry-erase writing board and magnetic bulletin board; Smooth and durable surface Matrix has a modular design and is intended to be grouped with other Matrix boards and signs to create a full service communication system Recommended for moderate use in personal space or small conference rooms; Sleek, thin profile board with aluminum frame Mount vertically or horizontally using the included innovative mounting system for flawless side-by-side alignment; 34 inches W x 23 inches H Board can also be hung from cubicle walls using Cubicle Partition Hangers (sold separately); Attachable marker tray and 1 Quartet dry-erase marker are included