Thanks to its softer sponge, the Sriver FX has better control and stability whilst retaining the performance of Sriver as much as possible.
|Sheet color||Red, black|
|Sponge thickness||Max, 2.1, 1.9, 1.7, 1.5, 1.3|
|Country of origin||Japan|
*The performance index for Butterfly rubbers has been revised from February 2023 in line with improved measurement methods. > Learn more