Material: Copper alloy
Handle diameter: 21-23mm
Material: Ringtones, crisp riding warning, compact and portable, not occupying space
Ergonomic Pick
Rounded arc smooth and does not hurt the hand to ring the bell, more effortless and comfortable
Suitable for most pipe diameters
Convenient installation for pipe diameters between 21mm-23mm
Anti-slip finger
Aluminum alloy finger dial effectively prevents the embarrassment of slipping when refusing to ring the bell