This professional training football is made of high elasticity PU material, with a delicate and wear-resistant touch. After 5000 impact tests, it maintains stable air pressure and is suitable for use on multiple fields such as grass and plastic.
The spherical surface adopts seamless hot bonding technology, which is tightly spliced and not easy to peel off. The waterproof coating design ensures that rainy training is not affected.
Equipped with rubber cloth technology, the air tightness is improved by 30%, and it can maintain a full state for more than 72 hours after inflation.
Sufficient to meet the daily training and competition needs of professional athletes
Weight: 410~440g
Process: 3.5mm PU seamless hot bonding process+inner lining fabric technology
The logo can be freely customized.
Size and weight standards for size 5 football:
Perimeter: between 68.5 centimeters and 69.5 centimeters.
Weight: between 410 grams and 440 grams.
Pressure: 0.6 to 1.1 atmospheres (600-1100 g/cm2).
Material: 3.5mm PU thermal bonding+fabric technology
Standard football performance:
Durability: After withstanding 2000 impacts at a speed of 50 kilometers per hour, the shape and size of the football should remain stable.
Rebound performance: When falling from a specific height, the rebound height should be within a certain range and not exceed 10 centimeters.
Water absorption: After soaking in water, the weight of a football does not increase by more than 10%.