Adjustable Bike Bell: 3-layer buckle with 2 different sizes of rubber bands, the bicycle bell is easy to adjust according to your needs; Suitable for most bicycle handlebars with diameters of 22 - 35 mm/ 0.87 - 1.38 inch; It comes with 2 colors, which can be replaced and applied to different bikes Quality Materials: The bicycle bell is made of quality aluminum and engineering plastic material, lightweight and durable, which does not won't add too much weight to your bike and take up a lot of handlebar space Clear and Loud Sound: The bicycle bell makes a loud and pleasant "Ding" sound, universally understood and easily understood by people of different ages, bringing you a safe ride Easy to install: No tools are required for installation or removal, with 3-layer buckles, 2 rubber bands and non-slip mat, it can be easily installed on the handlebars in just 1 minute Wide range of applications: the universal bicycle bell is suitable for road bike, mountain bike, city bike, sports bike, children's bike, bicycle cruiser, mountain bike, BMX bike, electric scooter, etc., you can also prepare the bicycle bell. for yourself, or send to friends and family as a practical gift