TreeWorks Chimes - Chime Damper with built-in mount - Fully adjustable tension from light dampening to full mute - Super rigid Laser cut steel - Black Powder Coat finish. Not recommended for double-rowed chimes because the swing arm will only hit one row of chimes - Works on any brand chime - Made for the TRE35, but will work with TRE23, TRE417, TRE44, TRE28 & TRE35xo as well. Not recommend for double rows. Hand made in Nashville, Tenn., U. S. A.