Decathlon - Size 5 Machine-stitched Football Training Ball - White - 5

Need a ball for your football club? With this F100 ball, go for a durable outer material that's ideal for your footballers' first steps in football. Key benefits: • Durability: TPU outer cover for good durability. • Lasting air retention: Optimised bladder for good air retention. • Bounce: The ball meets international football standards in terms of bounce. Technical information: The story behind this ball: It's important that young footballers use a ball that's the right size, no matter their age, which is why our design teams have developed the F100. Size 4 between 9 and 12 years. Size 5 for over 12 year olds. In addition, we have conducted numerous lab and field tests to guarantee the ball's ability to withstand every hit. ; Too light? Too heavy? The weight is standardised...: Between 410 and 450g (Size 5)Between 350 and 390g (Size 4) ; How big is it? What's the circumference?: Between 68 and 70 cm (size 5).Between 63.5 and 66 cm (Size 4). ; A "round" ball?: Average measured variation: maximum of 1.8%. We measure the football's sphericity at 4500 different points and then examine any differences. If the discrepancy is greater than 1.8% (FIFA Basic Standard), our engineers are tasked with improving the sphericity to ensure a consistent bounce. ; Maximum pressure loss test: here's what we do...: We inflate the ball to the recommended pressure (meaning 0.8 bar). 72 hours later, the ball must not lose more than 15% of its pressure, meaning approx. 0.1 bar. The pressure after 72 hours must, therefore, be at approx. 0.7 bar. This also means that it is quite normal for a ball to lose pressure after a few days.