OptiMA Inc. offers exceptional dry erase bar line graphs with a superior writing surface and easy-to-follow ghost grid lines, enhanced by bold printed axis lines along the sides and bottom. Unlike typical XY axis boards, our graphs feature a detailed view of a single quadrant, making it simple to create various bar charts, line graphs, and more. Made in the U.S.A., our line graph and bar chart boards come in various formats, including wall-mounted boards, compact handheld lap boards, and roll-up dry erase magnets. Customization options are available through customer service, allowing you to add company or school logos, create unique designs, and tailor headings and grids to your needs.