This is the elegant brass version of the Fight Bell that worked for Muhammad Ali in many a prize fight, it worked for the NY Stock Exchange for decades to start and end their days, and it currently works in mines around the globe. Not only will it work for you, but it will look oh so good while doing it! A mechanically operated warning device (read: doesn’t require any electricity (a firm tug’ll do it). This Trip Gong is vital safety equipment in apartment houses and commercial buildings – in the event of power failures you can still alert residents. Construction jobs, factories, mines, schools and engine rooms all benefit because you can hear it above the noise – what’s that you said? The gong itself and the mechanical lever action are made of brass. The base is steel with black powder coating. This one rings loud and true. Please note, a small number is kept in stock, but orders for multiple bells can take a few weeks to a few months to fulfill. Made in USA.