You'll always know when there's stormy weather ahead thanks to this beautiful Storm Glass Necklace! It's a pretty miniature version of the functioning Fitzroy barometer that you can wear as a pendant. The liquid inside this striking pendant undergoes interesting and unusual crystal growth in response to changing weather conditions. Is the liquid cloudy with delicate little stars? That might mean some rain is on the way. Maybe it's looking clear with little stars dotted throughout - today might be a bit nicer for you! Age: 12 years and up Item Code: 10125 Silver chain measures: 60 cm (with 8 cm extender) Glass barrel measures: 3 cm in diameter x 1 cm deep Package dimensions: 23 x 6 x 4 cm