Grover Pro Super-Overtone Triangle 9 in.

Grover's Super Overtone Triangles are the culmination of years of extensive research and experimentation Each triangle is formed from a specially treated carbon steel alloy Also available in the Hammered Super Harmonic that effectively dampen the fundamentals through a special hammering process, thereby, filtering the lower partials and fundamental What shines through is a resonant array of high frequency overtones Available in both 6" and 8" sizes Made from a very special alloy, each