A beautiful jewel toned metal with a soothing melodic sound! I've had mine hanging outside since 2018, 24/7, and there is no sign of discoloration or damage. A stunning addition to your outdoor decor, and would make a fantastic gift!
Dark blue is "Indigo"
Light Blue is "Blue" but looks teal in person.
Purple is a legit purple.
Yellow is golden yellow
Green is Olive green.
The multicolor is all of the above, plus copper & red.