This black-on-black bicycle bell features classic styling and the "Makai" logo on the side of the bell, and measures approximately 2.5 inches in diameter. The bell itself is made from steel, the lever and base of the bell is made from plastic. This bell makes a loud "bring-bring" type noise when you operate the push lever. The lever can be operated by your thumb or forefinger depending on where you mount this bell. It has an adjustable black plastic mounting bracket that will fit most standard size bicycle handlebars.