: This bike bell is made of premium copper alloy and nylon material, strong, high strength, waterproof (anti light rain) and durable. Universal Bell: The bicycle bell with ergonomic design, fits most bicycles, folding bikes, and mountain bikes, and can be easily installed The applicable handlebar diameter is 22.2mm. Nice Loud Sound: This mountain bike bell always us a crisp loud sound. Pedestrians and passing can clearly hear your ringtone, which makes the riding much more. Compact: The cycling bell is small and compact, length 7cm/2.76inch, which will not occupy much installation space. Its delicate design shows good texture. Easy to Install: The bike handlebar bell can be easily installed on the bike handlebar, which is stable and easy to detach. Specification: Material: Copper Alloy, Nylon Size Chart: Length 7cm/2.76inch Package Includes: 1 Bike Bell Note: Please allow slightly errors due to manual measurement and different monitors. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.