Friendship 729 Master GT Thickness:2.1 but still existing group of

but still existing group of players who want the hardest possible sponge

which is more common in the youth sector

lifting and smashing

even bounce and long lasting

Fortunately

Friendship 729 Master GT Thickness:2.1 but still existing group ofGT stands for "Geospin Tacky" because this surface uses the upper rubber of the Friendship Geospin Tacky. However, the sponge is brand new and significantly higher quality. The two rubbers are also very playful. This sponge is given a degree of hardness of 36 degrees, according to the European scale it is about 42 degrees (i. e. medium hard with a tendency to be somewhat softer). This makes the sponge a little softer than most Friendship rubbers. In