K2400 basketball hot sale resistance to play indoor and outdoor basketball

Pu big particle surface basketball is durable to play basketball

 1. Air needle is connected to the air cylinder; 2. Dip the air needle into water or lubricant and insert it into the air nozzle of the ball vertically; 3, the amount of air, pay attention not to fill too full when the temperature is high; 4. Pull out the air needle vertically immediately after inflation.