The ROCKBROS 2019-1AS is a vintage-style bicycle bell designed with an ultra-slim profile to keep your handlebars uncluttered. Its structure is crafted from aluminum, while the internal resonance element is made of copper, which produces a clear, crystalline sound to alert others of your presence. Weighing approximately 40 g, this lightweight accessory uses a plastic clamp and lever for a secure, universal fit on most handlebars. The materials are chosen for their resistance to corrosion and vibrations, ensuring the bell remains functional and polished through daily commutes and various weather conditions.