- Sponge Hardness: 128°F (52.5°C)
- Adhesive tension backed soft
- Country of Origin: Germany
Blue New Star Here!
The Blue Star A1 with OPTE sponge is a new feeling of rubber that can be found completely different from traditional rubber as the moment players hit it.
Specifically, the catapult effect that the ball pops up and the speed is noticeable.
In addition, unlike the Blue Grip series, the new feeling of grip is also the power to generate the ultimate spin.