The new professional single-row Concert Chime with attached damper for use in all situations. Swing the damper arm out of the way for live performances where your sound requires greater strength and resonance. Swing the arm against the bars to silence the chimes quickly. The bars are TreeWorks' chime specific aluminum/titanium alloy. The bars are polished and T-6 tempered for brilliant tone. Each instrument is individually hand-tied with 50-pound braided CordLoc , No plastic ties are used. The mantle is hand-finished Tennessee White Ash. The package also includes the TRE51 hard-sided gig bag.