FITS TO EVERY HANDLEBAR WITH 21-22.2 MM DIAMETER Whether mountain bike, racing bike, city bike, mountain bike, e-bike, scooter or scooter - our bicycle bell for children and adults fits universally on all bicycle handlebars. Sound up to 120DBThe bike bell has strong sound penetration performance, the volume of a crisp and loud bike bell can reach up to 120DB, pedestrians and passing vehicles can hear your ringtone clearly Corrosion-resistant copper alloy shell Made of high-strength copper alloy and ABS, durable and strong. Prevent rust and corrosion withstand any weather condition - whether you are off-road MTB or commuting to work on city bike daily. Beautiful appearance and easy to close InstallBike bell have retro design, exquisite and mini. Compact and does not take up space,Can be disassembled in a short time,Installation can be completed in 1 minute. Just tighten the screws on the handlebar with a screwdriver. Unique ringtones The sound of the bicycle bells is not as harsh as other bellsIt has the characteristics of clearer sound and very beautiful echoYou so don't have to worry about passers-by being scaredLet everyone avoid embarrassment.