Signum Pro Poly Plasma 1.18 and 1.23 Signum Pro has garnered quite a following in Europe but is only recently making a splash here in the States. Poly Plasma is a bright orange co-poly that has better than average tension maintenance for a poly based string and plays a bit softer than Luxilon.

$24

Signum Pro Tornado 1.23. This heptagonally shaped polyester is one of Signum's new Black Line of strings. Designed to produce big spin.

$30