TreeWorks Chimes - The ZenTree™ - With the unusual tiered or stair-stepped tuning the ZenTree has a mystic and soothing sound. It is unlike any chime you have heard before. - 69 bar double row for maximum projection - 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.