Polydron Basic Set - Translucent - Set164 delivers reliable performance with thoughtful details for daily use. Great for budding builders,this 164 piece starter set contains 3 key shapes (Squares,equilateral triangles and pentagons)which allows children to construct their first 2D and 3D shapes with ease. This set contains a teachers’guide. The set contains 40 squares;100 equilateral triangles;24 pentagons and an exploring booklet.