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Triangular colour coded musical prisms, Set of 12 Perfect for developing listening skills 50 x 60mm prisms, Each set contains 12 beautiful hardwood triangular prisms, identifiable by colour coded musical notes. The notes only appear on one side of the prism so they can be turned upside-down to test the user's discriminatory skills. The prisms are perfect for encouraging students to use and develop their listening skills, an important precursor to early phonics. Each colour coded sound prism makes a different sound when shaken, identical coloured pairs make the same sound. Size of triangular prism 50mm x 60mm.
