Wind chimes add elegance and beauty to any lawn or garden. The Bells of Paradise Rainforest chimes are created using inotation tuning. Inotation tuning is a frequency at which the vibrations are at a ratio to create long intervals of chiming when blown. The 6 matte dark green tubes are powder-coated aluminum. They are durably suspended from a silver aluminum wind catcher. At 32" in length, these chimes are certain to add just the right touch to your patio, front porch, or garden. The Bells of Paradise Rainforest chimes are also available in a larger size. This chime would also make an amazing gift for the lawn enthusiast or gardener in your life.