Donic Bluestorm Z1
Bluestorm Z1 with its medium pored sponge and a short, wide pimple structure is the hardest and fastest of the three Bluestorm versions. It has immense power. However, in order to engage with so much horse power, a competent driver is required behind the wheel. A well trained player, master of the fastest game, will find Z1 to be a lethal weapon.
A comprehensively thinner top surface rubber, subjected to high tension, allows space for a thicker sponge - generating extra power and speed.