Second generation: 1. Material: copper alloy + ABS plastic 2. With waterproof seal to protect your tracker 3. Pure copper material, durable and melodious 4. You can put the tracker in the bell to find the bike at any time, the hidden design is not easy to find 5. Suitable for handlebar diameter of 22.2mm 6. Dimensions: 39 x 49 x 56mm 7. Weight: 40.4 grams 8. Note: Bells only, trackers not included
