The topsheet of the Rasanter rubbers has a high degree of glossiness to compensate for the loss of rotation after the introduction of plastic ball. R is for rotation. These rubbers have better spin potential and allow you to consistently play a large variety of shots. The most popular choice among the Rasanter family, R47 offers power, speed, spin, and comfort on all attacking strokes. Though not 50 degrees like the R50, the R47 is still plenty hard and has a bit of bounce with high level speed and a medium throw angle. The package this rubber offers is catered to attacking players who seek to maintain power at all distances. High level players will be able to take advantage of what this rubber can do.