1. One-piece structure made of PC material, stable and not loose after long-term use 2. Supports single/double bottle cage mode, which can be switched freely according to different needs 3. Expandable design is compatible with small cycling equipment such as rear bags 4. Lightweight process makes riding easier 5. The extension frame is compatible with most seat cushion designs on the market, and can be quickly and firmly installed with screws and nuts without complicated tools 6. Size: 105x75x85mm 7. Weight: about 75 grams
