Cubes can be a great way to explore numbers or just a fun building activity to develop motor skills and fire the imagination. This hinged cube has an articulated face that allows for children to incorporate angles into their construction, giving them a whole new opportunity to create. Fully compatible with the cubes and the prisms. The Multilink Iso is fully compatible with the Cube and Prism. 300 Multilink Isos - 30 each of 10 colours.