Mirage Beads. Colour Changing Mood Beads. 5mm Round Beads. Quantity: 4. Come alive with sensuous colour as your wear these colour-changing mood beads! Inspired by the mood jewellery of the '60's and '70's, these thermo-sensitive liquid crystal beads change colour with minute variations in temperature. Style: Round, large hole beads Measurements: 5mm thick, 5.8mm diameter around the hole. The hole is 2.5mm in diameter. Quantity: 4 beads NOTE: Although very durable, do not submerge in water.