Ideal for nurseries, day cares, preschools, and after school programs: · An ideal class set for building 2D and 3D shapes with triangles and squares · A great class set for larger groups of children · A must for all early years and special needs environments · Contains 80 pieces (40 squares and 40 triangles) in 4 colors · Squares measure 8.27" x 8.27". The large and chunky pieces enable children to easily construct really large models. · Pieces are lightweight and durable · Use indoors or outdoors · Textured surfaces make the shapes very tactile · Includes braille · Helps children understand spatial awareness · Connection is simple and easy to do