These Mitre match footballs are suitable for both grass and astro surfaces. Product Details: Hyperseam TM technology, with bonded and stitched seams for almost zero water uptake, to last in all weather conditions. Constructed to deliver enhanced grip and control with Mitre's textured surface on the outer. Developed with a unique 20 panel construction for superior in-play feel and superb ball flight. Constructed with Hyperfoam, a high elastic foam, for maximum power. Suitable for grass or astro surfaces. Ball requires inflation, so ensure you have a pump to hand. Size 4 Product Name: Mitre Ultimatch One Football - White/Light Blue/Dark Blue/Black Size 4 Mitre Code: BB1117B23 Option: Size 4, Size 5