4.2 kPa Mini Air Pump with 800 mAh Battery & LEDUltra Light 45 g, Pocket Size Portability: Weighs only 45 g and measures 40. 6 37 45 mm, smaller and lighter than an egg. Comes with a lightweight storage pouch and integrated hanging loop allows easy attachment to backpacks, tents or gear loops to prevent loss and free your hands. 4. 2 kPa High Pressure and 300 L min Airflow, Powerful Inflation in a Mini Body: High efficiency airflow and stable pressure deliver fast inflation and deflation despite