1. Weight: about 90 grams 2. Pump size: about 12x7.4 cm, can be stretched to about 15.5 cm 3. Material: aluminum alloy 4. Features: beautiful and practical, compact and portable, the barrel is equipped with a barometer to measure tire pressure, and the bicycle mounting bracket can be installed on the bicycle, safe and durable 5. Easy to operate 6. List: pump x1, screw x2, bracket x1, pump needle x1,