Anti-rust coating and excellent craftsmanship: The bicycle bell is made of high-quality steel alloy with anti-rust and anti-aging coating for long life. Bike Bell Tone: The bike bell is compact, has a built-in steel rim bumper, and has a rotating crash sound system. Pull the paddle to make a pleasant ringtone. A clear chime can easily attract attention, thereby improving safety while riding. EASY TO INSTALL: The bicycle bell ring is easy and quick to install, just use a screwdriver to tighten the screws on the side of the handlebar, and the installation is done in 1 minute. Compatible Handlebars: Bike rings can be used on road bikes, mountain bikes, city bikes, sport bikes, kids bikes, BMX bike handlebars with a diameter of 21-23mm. SATISFACTORY SERVICE: Bike handlebar bell rings are a must-have bike accessory for kids and adults riding mountain bikes or road bikes.