1、HIGH DECIBEL - This bike horn ring features a rotated collision sounding system that delivers loud and crisp 90 decibel bell sound can easily attract others attention,to increase safety while cycling. 2、RUSTPROOF MATERIAL - This bike bell is made of alloy steel material which is high hardness,and the anti-rust waterproof paint outer layer of the bike bell provides long service life to use. 3、PRACTICAL - The rounded arc pick is smooth,just push it gently and you'll hear the crisp ringtone.A bell on one's bike to be an important safety feature when riding on the roads.It is labor-saving and time-saving to press the bell while riding. 4、EASY INSTALLATION - You can easily install this bell on bike using a screwdriver in minutes. Fits for handlebar tube outer diameter with 21mm - 23mm (0.83inch - 0.90inch),suitable for most bicycle handlebars and models on the market. 5、WIDE APPLICATION - The loud sound bike ring can be apply on most road bikes, mountain bikes, city bikes, sports bikes, kids bikes, BMX bikes,etc.This is a perfect choice if you looking for a cute cartoon bike bell. 6、