Loud sound: The ROCKBROS bicycle bell has a sharp and clear sound. The small bell has a loud chime to warn the hikers and passing vehicles that you are coming up behind them, enough to draw attention. Enjoy the cute classic bike bell on the go. Easy installation: Insert the matching metal band around the handlebars into the two slots on the bottom of the bell, then tighten the top screw until it is tight, but please do not tighten much tight or the bike bell can’t ring. Fits Most Bikes: Comes with two different metal bands and only one is needed depending on your grip circumference, which fits handlebar diameter from 0.83 inch to 1.4 inch is suitable. Superior Material: The bicycle bell is made of high quality brass alloy. There is a durable anti-corrosion coating on the surface. The Rockbros bell also easily withstands bumps or falls.