Your Dry Erase Experts Est. 1987

OptiMA® 30" x 45.25" Dry Erase Polar Coordinate Magnet

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Dry Erase Polar Coordinate Magnet
Dry Erase Polar Coordinate MagnetDry Erase Polar Coordinate MagnetDry Erase Polar Coordinate Magnet

Large dry erase polar coordinate magnet. What a great way to have a dry erase polar coordinate graph in your classroom.

When needed you simply take it out of the corrugated shipping tube it comes in and roll it out onto your magnetic classroom whiteboard. When your done with that lesson plan or section of your curriculum you roll it back up with the print facing out and store it until you need it again.

The polar coordinate grid is printed onto a heavy duty white vinyl. Then we laminate the print with our exclusive clear dry erase writing surface protecting the print. Finally the whole thing is laminated again onto a heavy gauge magnetic sheet that sticks securely to any smooth steel surface like a magnetic classroom whiteboard or chalkboard.

Our dry erase polar coordinate magnets are manufactured in the U.S.A. and school purchase orders are accepted.

Model Number Item Size
(Height x Width)
Weight Ships
GR-PC-MAG-304 30" x 45.25" Dry Erase Polar Coordinate Magnet 8 lbs. UPS

  • Overall Size: 30" Tall x 45.25" Wide
  • 16 concentric circles on 1 7/8" centers.
  • Lines to circumference are 15" apart
  • Printed on Heavy Gauge Magnet that sticks to any smooth steel surface
  • Custom prints are available for a small artwork fee.
  • Magnetic Print weighs approximately 8 lbs.
  • No installation hardware required.
  • Ships with one black marker and one Opti-Wipe™ micro-fiber wiper.
  • Normal lead-time is 3-5 business days to ship
  • Ship by UPS in heavy corrugated shipping tube which can be re-used for safe storage
  • School Purchase Orders Accepted
  • Made in the U.S.A.
    Other For Best Results:
  • Note that Expo or other Bristle type erasers may permanently damage the writing surface.
  • Do not use any cleaning chemicals which contain ammonia. Most glass cleaner contain ammonia.
  • Do not use any type of scrubbing sponges or other abrasive to clean the boards.
  • We strongly recommend using facial tissue or our Opti-Wipe™ washable micro-fiber cleaning cloths.
  • For best results use a quality dry erase marker and wipe writing surface clean after use.

Questions and Answers about this product


COVID-19Current Status

To our valued customers,

We are open -- all products and lead times listed on the website are accurate. We will continue to monitor the situation and provide updates should anything change.

At OptiMA we are monitoring the latest news about COVID-19. And like many of you, our number one priority is keeping our customers, partners, suppliers and employees safe and healthy. We believe it's important to do our part to help reduce the transmission of COVID-19, while remaining accessible to our customers.

As we diligently follow the guidance and best practices put forth by the Centers for Disease Control and Prevention (CDC) regarding work-from-home practices and daily cleaning routines, we remain online and in operation.

As a US manufacturer we feel prepared to weather this storm and continue to serve our loyal customers in a safe and productive manner.

As always, we look forward to serving you. If you have any questions, please feel free to contact us at info@mywhiteboards.com or 866-366-1500.