These chimes can be played with a mallet or a bow. They are made from solid aluminum bar stock and resonate (ring) longer than any other bowed instrument I've ever heard. I take great care in making sure they are perfectly tuned (I use A 440hz but other systems are available).
I make three set options:
1. Major pentatonic scale, 6 pitches (shown).
2. Minor pentatonic scale, 6 pitches.
3. Major or Minor triad (chord of three pitches).