【Compact and Portable】Measuring 27cm when collapsed and 45cm when extended, this lightweight aluminum alloy pump weighs only 133g, making it easy to carry on your rides without adding burden. 【Versatile Compatibility】Suitable for various applications including basketballs, mountain bikes, road bikes, and electric bicycles, with a maximum pressure of 120 PSI. 【Space-Saving Design】Can be installed alongside the water bottle cage, saving valuable space on your bicycle frame. 【Quick Valve Switch】Easily switch between Presta and Schrader valves by simply rotating the pump head, accommodating different tire types. 【Stable Pumping】Features a foot-operated base for increased stability during inflation, ensuring a steady pumping experience. 【Pressure Monitoring】Equipped with an external pressure gauge for real-time pressure readings, allowing precise inflation. 【Thoughtful Details】Includes a hose fixation design to prevent debris entry and comes with mounting brackets for convenient attachment to your bicycle frame. Specifications: Model: RY-MP2821B 42322821001 Dimensions: 4.2cm bottom width, 5.3cm top width, 27cm collapsed length, 45cm extended length Material: Aluminum alloy + plastic Maximum Pressure: 120 PSI Weight: Approximately 133g Compatibility: Basketball, mountain bike, road bike, electric bike Valve Types: Presta and Schrader