The ROCKBROS 15-1BBK is a classic spherical bicycle bell designed to add a traditional touch to your ride while ensuring you are heard by others. Crafted from stainless steel with a matte black finish, it features an anti-corrosion coating that helps the bell withstand various weather conditions during city commutes or road trips. This accessory produces a high resonance sound with an intensity of 75 dB, providing a clear signal to pedestrians and other cyclists. Its universal mounting system allows it to fit handlebars with diameters ranging from 21 mm to 31.8 mm, making it a versatile choice for vintage, road, or mountain bikes. The package includes the bell, the mounting hardware, and an Allen key for a straightforward installation.