The TreeWorks 3-Tone Chimes have 3 resonate and distinctive tones. Each bar is tuned by ear out of a custom T-6 tempered, 3/8-inch solid Aluminum/Titanium alloy. The wooden mantle is Tennessee White Ash sourced from the Highland Rim area of Middle Tennessee. The raw mantle is sanded 16 times before the finish is applied by hand. The cord used is Braided CordLoc that is capable of holding 50-pounds. Also included is a wooden mallet.