Designed for discerning musicians, Gon Bops PCHB8AL36 Bar Chimes feature 36 chimes alternating between SABIAN B8 Bronze and Aluminum Alloy, tied with climate-resistant, braided 50lb line to a gorgeous Appalachian Red oak board. Gon Bops suggests that B8 Bronze is ideal for full sound at moderate to high volume, with rich, complex shimmer and long sustain ? the focus is in the mid-to-high range. Aluminum alloy produces warm tone, with shimmering sustain and focus in the mid-to-low range. The combination of the two produces a full-spectrum of tone with a softening on both ends of the frequency spectrum. These premium instruments come in a reusable clear-plastic protective tube.