... official size 5 football; training or promotional football. ---Your Excellent Machine&Hand Sewing Sports Ball Supplier---We are manufacturing and exporting ... /Nanjing seaport,China5)Other technicial data:Ball feel: Polyurethane with cotton layer.Air pressure between 0.6 and 0.8 ... the ball: training,playing,promotion,AD and so on. 2013 phthalates free football,machine sewn football,promotional football