Diadem Solstice Black Reel - 200m Gauge:1.25 WASABI is a four sided

WASABI is a four sided (square) shaped co-poly tennis string designed to blow your opponents off the court

Either way

The upgraded FS3 system adds three carbon fiber ribs

FS3 ties it all together with three carbon fiber ribs

Slap adds a touch more control and forgiveness without losing its explosive identity

Diadem Solstice Black Reel - 200m Gauge:1.25 WASABI is a four sidedDiadem Solstice Black Tennis String 200m Reel Solstice Black takes everything that made Solstice Power the flagship and turns the comfort up a notch. The black pigment makes it play softer, the improved extrusion process means better tension maintenance, and the six pointed star shape still delivers the same heavy spin and low friction snap back the Solstice line is known for. If you're already a Solstice Black convert, the reel is the obvious next