Why does "dumbbell" have a word "bell"?

So, will bell-ringing fitness be revived? In fact, in recent years, people have begun to pay attention to the benefits of ringing the bell for fitness. Experts recommend a fitness method called Bell Tower Belly Roll-ups, and you can also take a bell-ringing fitness class or even buy an old-fashioned rocking dumbbell for home use. Dumbbell is just a dumb bell, a pole with two balls at both ends. Foreigners call this thing bell. Since it is not a musical instrument and doesn't ring during use, it is of course called "Dumbbell". The word combined dumbbell came later, which is a literal translation of English. Our traditional similar equipment is a stone lock, and the shape of dumbbell is imported from abroad. We didn't have barbells before. At present, the most popular kinds of dumbbells, but there are various kinds of inferior products in the market. Be sure to keep your eyes open when shopping. It's not as cheap as possible. These fitness equipment are used all day and breathe faster when used. Be sure to choose products from high-quality manufacturers.