The Chang Tactual Diagram Kit, model 1-03130-00, is a tactile map skills training kit designed for use by children who are blind or have low vision. This tactile aid enables teachers of orientation & mobility and other curricula to construct diagrams and maps using brightly colored plastic pieces that adhere to a dark felt board covered with hook and loop material. The kit includes flat geometric forms in 27 different shapes and sizes (104 total), a print instructoral guidebook, and a carrying case. OPTIONS: Copy of print instructional guidebook (model 7-21900-00). COLORS: Plastic pieces are yellow; the felt board is black.