Properties: Spokey GOAL Football: has machine-stitched panels, which ensures secure and durable joints, perfect for everyday play and training on grass pitches, is the standard size used in football (5). The circumference of an optimally inflated ball is 690 mm +/- 10 mm and its weight is only 280 g +/- 10 g. It can be inflated using both a pump and a compressor. Parameters: material: PVC, 1.6 mm size: 5 (690 mm +/- 10 mm) weight: 280 g +/- 15 g number of layers: 1 machine-sewn