All replicas are officially licensed and fully endorsed by the international unions. Balls in the licensed Gilbert ranges are fitted with a synthetic bladder. This is to ensure that they remain inflated for the maximum length of time when on display.
Size 5 only has 3 ply backing material, all other sizes have 2 ply
3 Ply backing material for good shape retention*.
Grippy rubber compound surface.
Synthetic latex bladder for excellent air retention.