Your Dry Erase Experts Est. 1987

OptiMA® Double Sided Polar Coordinate Lap Boards

SKU: GR-LB-Polar
Our Price:
Made in
the USA
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Woman Owned Small Business
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Polar Coordinate Boards

Double-sided student lap boards with polar coordinates made in the U.S.A. by our own OptiMA® Graphics. Double-sided lap boards with one side printed with a polar coordinate chart and the other side plain white.

Sturdy non-magnetic 9" x 12" or a larger 11" x 17" individual student lap board with rounded corners and bull-nosed edges are perfect for any classroom.

The blank, plain white side makes the boards more versatile than single-sided lap boards.

Tip: It is not recommended to clean these boards with anything containing ammonia which is found in most glass cleaners.
It is not recommended to use damp / wet-erase markers with these boards. If it is necessary to use wet-erase markers, erase clean with a damp cloth within 24 hours.

SizeShipping MethodShipping
Sale Price
GR-LB-Polar-DS9" x 12" Double SidedUPS0.5 lbs$9.31
GR-LB-LG-POLAR11" x 17" Double SidedUPS0.95 lbs$24.61

  • Double Sided - Print on 1 side, white on the reverse.
  • Two sizes: 9" x 12" or 11" x 17"
  • Each Sold separately
  • Smooth rounded corners and edges.
  • Polar coordinate chart is permanent and won't scratch off.
  • Uses standard dry erase or damp erase markers sold separately.
  • School purchase orders gladly 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

WARNING: This product can expose you to chemicals including Formaldehyde (gas) and Wood dust which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov www.P65Warnings.ca.gov

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.