Non-porous surfaces. Front side is lined and the back is a blank white dry erase surface.  Our Centimeter Grid Board is excellent for math and science classes. Excellent for use with metrics, graphing and plotting, Punnett squares and much more. All edges and corners are rounded for safety and durability. The board itself is a solid, wood board 1/8″ thick. Unbeatable Markerboard People quality.

blackboard is a set of circuits designed to allow you to power small circuit ideas on 170-point breadboards. It consists of four parts, a 3V coin cell plug-in module, a linear variable power supply, a plug-in SMD adaptor and a supporting coverlet.