The Rasanter series launched in March 2017 is the latest innovation by andro. The Rasanter R50 has been designed for the 40+ plastic ball. The thick sponge of the Rasanter compensates for the spin differences with the 40+ ball. The R47 has a 50° sponge developed for high level players. This hardness in sponge provides extra power and speed and is the hardest sponge within the Rasanter series.