TreeWorks Chimes Steeple Triangle · Large size and diameter give you plenty of surface area and overtones. Made in Nashville, Tennessee, U. S. A. · Extremely hard, high-carbon steel for brilliant shimmering response. · High heat tempering for a full spectrum of sound. · Ultra thin satin surface does not adversely affect the natural sound of the alloy. · Hand bent and tested by ear. (No factory style mass production.)