20% Off All 2025 Dry Erase Calendars thru December 31st. Stay organized with OptiMA® magnetic dry erase calendars, perfect for businesses, schools, or homes. Our whiteboards are designed with non-ghosting surfaces that wipe clean effortlessly every time. Available in sizes from 2' x 3' to 4' x 8', with a full-length marker tray and durable anodized aluminum trim. Customize your calendar! Customization options are available to add your logo or adjust layouts. Easy installation and fast lead times! Contact Customer Service for assistance.