The Understanding CNS chart describes the components of the central nervous system, or CNS. The brain is represented through several images, and smaller views show the ventricles and the functional areas of the brain. Cellular views include the neuron and synaptic cleft, describing the action of neurotransmitters. Heavy gauge 3ml lamination with sealed edges and two metal eyelets for hanging makes chart highly durable. Write-on/wipe-off with dry erase marker (not included).