Ideal for players looking for a maximum of spin potential and power.

Heptagonal, twisted co-poly string for highest level of spin potential.

#1 string in power and tension stability during play (Playtest of spin strings 2014 by German tennisMAGAZIN). #2 string in spin potential. Overall rating: GOOD.

Ideal for advanced players looking for an explosive and snappy string with a crisp feel.

Hexagonal shape and strong snap-back effect for great spin potential.

Special coating for reduced string movement.

Ideal for players using a stiff racquet frame and/or looking for a very comfortable and arm-friendly string with enhanced spin potential.

Softest among all MSV-Co-Polyester strings. 38 % more elastic vs. MSV Focus Hex®. High-performance co-polyester.

The Signum Pro Thunderstorm is a axially twisted, decagonal string that offers excellent spin and control. This durable string has minimal tension loss while offering a comfortable, control oriented feel. This thinner gauge also offers a great playability.

Ideal for Club- or Tournament-Players with a powerful groundstroke

Hexagonal shape and strong snap-back effect for great spin potential

High-Tech additives for excellent control, durability and tension stability

Our best-seller.

Ideal for players using a stiff racquet frame and/or looking for a very comfortable and arm-friendly string with enhanced spin potential.

Softest among all MSV-Co-Polyester strings. 38 % more elastic vs. MSV Focus Hex®. High-performance co-polyester.

Ideal for advanced players looking for an excellent balance between control and power combined with exceptional spin potential.

8% more elastic vs. MSV Focus Hex®

Hexagonal shape and strong snap-back effect for great spin potential.

High-Tech additives for excellent control, durability and tension stability.

GAMMA iO offers exceptional power, access to spin and pinpoint control. Its unique co-poly material takes ball pocketing to a new level, providing ideal levels of response and comfort. GAMMA iO is best suited for players with penetrating and punishing ground strokes from both sides.

Ideal for advanced players looking for an excellent balance between control and power combined with exceptional spin potential.

8% more elastic vs. MSV Focus Hex®

Hexagonal shape and strong snap-back effect for great spin potential.

High-Tech additives for excellent control, durability and tension stability.

The newest, most interesting innovation of the last years! Minimum tension loss (no string moving).
High durability and high dynamic. Excellent ball control.

Ideal for players looking for a very solid and precise co-poly string.

Tested and recommended by independent tennis coaches. Overall rating: 9 points (10-point scale).

The newest, most interesting innovation of the last years! Minimum tension loss (no string moving).
High durability and high dynamic. Excellent ball control.

Highlight: Minimal sharp sided structures delivers much power, control and spin. For all skill levels and ages. Unique!
Important Note: String main + cross 1.0kg less than normal Co-Polyeste.

Ideal for players looking for a maximum of spin potential and power.

Heptagonal, twisted co-poly string for highest level of spin potential.

#1 string in power and tension stability during play (Playtest of spin strings 2014 by German tennisMAGAZIN). #2 string in spin potential. Overall rating: GOOD.

Product features & key data: Optimum ball control Very good feedback Comfortable soft Arm-friendly string
Further information:
The Topspin Cyber Blue has been awarded both as "Newcomer of the year 2007" (Stringforum. net) and as String of the Year 2007 (Saitenforum.de).