Colour Changing Sensory Blocks - 24 piecesBring light, wonder, and interactivity into your learning space with the Colour Changing Sensory Blocks a fantastic 24 piece value set designed for learners from birth and beyond. This double set of LED filled blocks includes 8 large and 16 small cubes, each one changing colour when rotated to a new side. With a built in 360 gyroscopic sensor, these blocks support early ICT, STEM, and sensory learning by helping children discover cause and effect