Bright and clear sound: made of high quality aluminum alloy, the highest volume is 75dB after laboratory test. Maybe you have no idea about this volume seems someone is talking loudly in your ear, so it is a good reminder to the people around you, so that you can ride without worry.
Spring collision: external high strength spring, easy to use without deformation (ring adjustable)
Easy to install - fits for bicycles handlebar tube outer diameter with 21mm - 24mm (0. 83inch - 0. 94inch)
Applicable to most cycling bicycles: bicycle accessories suitable for children, mountain bicycles, road bicycles, urban bicycles, small motorcycles, MTB, etc.
Perfect after-sales service: 6 months replacement, please contact us if you have any questions about the product or service.