You need to find an inflatable pump and gas pipe to connect the inflatable mouth and hold the handle of the product inflate it through the inflator,when pressure is low or vice versa. Type Digital Tire Inflator Gauge.

Brand: Unbranded
Type: Digital Tire Inflator Gauge
Color: Black
Fit for: for most Car, Truck, Motorcycle and Bike
Features: Backlight, Digital reading, Easy to Use, 250PSI