NOTE: Premium Copy
The correct test method is: after inflation (inflation pressure should be between 7-9 pounds) stand for 24 hours, if the pressure of the ball drops more than 15%, it is called air leakage, such as no barometer, can be tested in this way: Meters from 1.8 (the lower part of the ball), On the flat hard ground, the ball falls freely from 1.8 meters, And the rebound height between 1.2meters And 1.4meters (the upper part of the rebound) is normal. Do not put the ball in the water! ! ! ! Can cause irreversible damage to the leather. Gift contents: 1 * Air PIN 1 * net 1 * pump (The gift is unprofitable and will not be replaced or compensated for any damage or loss. If purchased, this condition will be accepted by default. Passwords and network passwords are in a small bag. Same as the last picture. Size :7(24cm / 9.6in diameter) Color: black Material :PVC leather Weight: 600-700 - g Application: indoor and outdoor Cement ground, soil ground can also be used, but the surface of the ball is easier to damage. So don't do it if you don't have to. Age: adults and children