TreeWorks Chimes - Large Double row Classic Chime - 69 bar double row for maximum chime sound - Great for live performances where your sound requires greater strength and resonance. Hand-tied w/ braided CordLoc to last (NO PLASTIC TIES) - Polished & T-6 Tempered bars for brilliant tone - 3/8-inch thick solid Aluminum/Titanium alloy - Hand-finished Tennessee Black Walnut Mantle - Handmade in Nashville, Tenn., U. S. A. - Used by all Top 12 DCI Drum Corps