- Soft, Highly Flexible Spring Sponge
- Class: Super Speed
- Speed 13
- Spin 11.5
- Density 32
Tenergy has proved to be an outstanding success, combining High Tension Technology with "Spring Sponge". Tenergy has risen to the top of the charts; now there is further development which maintains high performance levels with greater control. Tenergy 05-FX combines High Tension Technololy with a softer version of "Spring Sponge".