100dB Hidden Bicycle Bell, Rainproof and Rustproof, ROCKBROS Color:Pink Velcro fastener: To fix the

Velcro fastener: To fix the crank

180 ° rotatable front and back to ensure your smartphone stays in your preferred viewing position

The reflective logo increases safety in the dark

1*Compatible base for Gopro

100dB Hidden Bicycle Bell, Rainproof and Rustproof, ROCKBROS Color:Pink Velcro fastener: To fix theSpecifications: Brand: ROCKBROS Material: Aluminum + PC Weight: approx. 30g Size: 62*48*22. 8cm Volume: 100dB Applicable Size: 22. 2 25. 4 31. 8mm handlebars Color: pink yellow blue black transparent Features: Portable: The ROCKBROS Bike Bell, a portable device for cyclists, with a Concealed design and crisp ringtones to make your bike ride safer and more enjoyable. Convenient: The compact and lightweight design, along with the non slip, leak proof