The Rockbros 2018-1ABK is a mechanical percussion bell designed to keep you safe and heard while cycling. It produces a sound intensity of up to 120 dB, ensuring your presence is noticed by pedestrians and other drivers on the road. This compact accessory is crafted from a combination of aluminum, copper, and polycarbonate, which gives it a durable build and a sleek matte black finish. Designed for versatility, the bell fits handlebars with a diameter of up to 22.2 mm, making it compatible with city, road, folding, and mountain bikes. Its waterproof and rust-resistant properties mean you can ride through rain or humid conditions without worrying about the hardware degrading. The package includes the bell and fast-fixing accessories, allowing you to secure it quickly to your bike for immediate use.