School Smart Hollow Plastic Pattern Blocks - Set of 250 - Assorted Shapes and Colors A great way to learn about shapes and colors! Six Different Shapes (Square, Triangle, Diamond, Trapazoid, Octagon, Parallelogram) Six Different Colors (Green, Blue, Orange, Yellow, Red, White) Can be used for play, lessons, or both Great for kids in Grades 2 - 5. Not intended for children under 3