Feature: Official Size 9 Football BallSize: Size 9Cover material: PU LeatherConstruction: Machine StitchingPanels: Traditional 4 Control PanelsWeigh: 425g (±15 grams)Recommend age: 9-12 12+ Years OldApplicable population: Adult/ Teen/ Youth/ Junior Boys&GirlsApplicable scenes: Backyard/ Grassland/ Park/ Football FieldPackage Include: Football *1;Tips:1) Not gas charged when you receive. Inflation pump is attached in the parcel.2) Put a few drops of silicon oil or water in the valve at the first pump up.3) Gently and slowly insert the air needle into the air hole.4) Control the inflation air pressure at 12.5-13.5psi.5) Try to avoid activities that are too professional.5) Wipe the surface clean after it is wet.6) Its easier to Contact Us for exchanging or refund than to drive out for back it!