The Bite:
100%, if you've got whiteboards and markers that graduated from the school of eco-friendliness. A++.
03.17.2009
The solvent in dry erase markers dissolves many permanent marker inks, so if you have permanent marker on your whiteboard, you can usually take a dry erase marker, write over the "permanent" stuff, and wipe it clean.

If 10,000 Biters each purchase six refillable whiteboard markers instead of disposable markers, we'll save the weight of 1,250 school teachers from going into landfills.
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