Bicycle Aluminum Alloy Bottle Cage Conversion Seat Fixed Adjustable Bottle Cage(Black)

1. Portable bottle cage conversion seat, can be installed on electric vehicles/bicycles/motorcycles
2. Can be installed on the seat tube, swallow handle, straight handle, etc.
3. Material: aluminum alloy
4. Process: surface anodizing
5. Installation diameter: 22-40mm
6. Weight: 43 grams
7. Size: about 7.7 x 5 cm