Loud and Clear Sound: The Rockbros bicycle bell generates a sound up to 80 dB. Thanks to the use of brass and a unique internal collision system, the bell sound is not only loud but also lasts a long time, attracting the attention of other road users. Road safety is an absolute priority, and our bicycle bell helps increase cyclist awareness. Easy Installation: The kit includes an Allen key for quick and easy installation of the bell on your bike's handlebars. The bell can be easily mounted on either the right or left side, and the four-step installation process makes it simple even for less experienced users. Versatile. The Rockbros bicycle bell is compatible with most bicycles. The set includes two non-slip pads that allow the bell to be mounted on handlebars of various diameters and shapes. This is an ideal solution for road, mountain, and children's bikes. The unique material of this bicycle bell is made of high-quality brass and nylon. The excellent craftsmanship means that the bell is not only elegant but also resistant to rust and aging. This product will serve you for many years to come. Specification: Material: Aluminum Volume: up to 80 dB Weight: 45g Handlebar Diameter: Fits diameters from 2.2 cm to 3.18 cm Included: 2 anti-slip pads, Allen key