The WEST BIKING Invisible Bike Bell is a sleek and durable bicycle accessory designed for cyclists looking for a discreet yet effective way to signal their presence on the road. Made from aluminum alloy and plastic, this mini bell is lightweight at only 28g and compact with dimensions of 5cm in length and 1.9cm in width. The bell emits a loud sound with a decibel range of 90-100db, making it easily audible to motorists and other cyclists. Its solid black color and designed to fit handlebars with a diameter of 22.2mm, this bell is a practical and stylish choice for enhancing safety while riding.