BLUEGRIP J2 Technology: Combines the strengths of the Bluestar A and Bluegrip C series. Characteristics: Very dynamic and powerful, extremely spin-friendly, guarantees high precision in ball placement. Recommendation: For modern, offensive-minded attackers. Colours: red, black Sponge thickness: 2.0, max Surface: slightly sticky, extremely grippy Sponge hardness: 52.5° Control: 7 Speed: 10- Spin: 11+ Category: OFF / OFF-