Four generations:
1. Material: aluminum alloy + plastic
2. With waterproof seal to protect your tracker
3. You can put the tracker in the bell to find the bike at any time, the hidden design is not easy to find
4. Dimensions: 43 x 73mm
5. Note: Bells only, trackers not included
1. Material: aluminum alloy + plastic
2. With waterproof seal to protect your tracker
3. You can put the tracker in the bell to find the bike at any time, the hidden design is not easy to find
4. Dimensions: 43 x 73mm
5. Note: Bells only, trackers not included