Geometric Forms, model 1-03410-00, are tactile aids for math designed for use by students who are blind or have low vision. These tactile aids for math introduce primary level students to the shape of a circle, square and triangle. The kit includes three plane figures, four solid figures, and a plastic sheet illustrating the three shapes in high contrast raised lines. COLOR: Plane and solid figures are yellow. Plastic sheet is white with black raised line.