Range: Polydron FrameworksAge: 6 years +L x W x H (cm): 18 x 11 x 8Designed to be used with other Polydron Frameworks sets to allow you to build a wider range of models.

• Contains 50 rectangles.
• Pieces are lightweight and easy to connect.
• See inside of the shape, and explore the space within.
• Polydron Frameworks is ideal for investigating and understanding shapes, angles, edges, vertices, planes and tangents.