Based on an equilateral triangular prism. Most Prisms interlock on 2 square faces, leaving 1 space blank. 1 Prism in every 10 is a Prism Plus which will interlock on each square face.

The Multilink® Prism is fully compatible with the Cube being based on 20mm square and an equilateral triangle.

Pack 300 Prisms in 10 colours.