The Triangle Machine + (Plus) comes from a collaboration between Billy Miller, and Neil Grover of  Grover Pro Percussion.  

Beater angle adjusts from 90 degrees, for a focused sound (ideal for pit work) to 135 degrees, for creating a nice spread of overtones (great for orchestral and contemporary settings).

The position of the beater slides, side to side, to find the optimal beater balance for your particular setup.

Includes the new custom made 5/16" Solid-Body Brass Beater. Length, weight, and balance (fulcrum) all optimized to get a great sound from your triangle.

[mount, triangle, not included]