Polar Coordinate Graph Dry Erase Boards

Magnetic polar coordinate graph system dry erase boards. 4' tall x 4' wide dry erase boards permanently imprinted with a polar coordinate graph.

4' x 4' Magnetic polar coordinate dry erase boards. There are (12) twelve concentric circles on 1 7/8" centers. the printed lines to circumference are 15" apart. The outside diameter of the polar graph is 45".

4' x 4' polar coordinate board Specifications:

• Porcelain steel, magnetic receptive unit with a dry erase writing surface.
• Lines are fused into the writing surface to last a life-time.
• Trim is 1" satin anodized aluminum and there is a full-length 2 3/4" deep aluminum marker tray on each unit.

Each polar coordinate board ships with a set of 4 assorted markers, an eraser and the installation hardware. Sorry but the 4x4 polar coordinate boards are too large to ship by UPS so they must ship by truck.

There is a 50-year warranty on the porcelain steel dry erase writing surface. The board is made on a 24 gauge porcelain enameled steel surface and is laminated onto a 1/2" particle board with a Mylar vapor barrier backing. The steel surface allows you to use magnetic accessories since the board is magnetic receptive. The graphics are permanently fused with the porcelain steel surface and will never come off.