Tecnifibre Tennis String Triax Blackcode 4S - Black - 1.24 - Polyester

The Tecnifibre Triax Blackcode 4S 1.24mm is a high-performance polyester tennis string built for aggressive baseliners who demand spin, control and durability. The unique 4-sided square profile bites into the ball for heavy topspin and bite, while the black finish gives it a striking look on the court.

• Gauge: 1.24mm fine gauge for added bite and feel
• Shape: 4-sided square profile for maximum spin potential
• Co-polyester construction firm, crisp response with good durability
• Low power level for excellent control on aggressive swings
• Ideal for full western grips and heavy topspin players

Who is the Tecnifibre Triax Blackcode 4S best suited for?

Polyester (co-poly) is the choice for advanced players with full swings who want control, spin and durability. It's best suited to mature players - we don't recommend full-bed polyester for juniors or anyone with arm issues.

What does the 1.24 mm (17 gauge) gauge mean?

The 1.24 mm (17 gauge) indicates the string's thickness. This is a medium gauge, balancing feel, spin and durability - a popular choice for all-round play.

What tension should I string it at?

The recommended tension range is 48-55 lbs (22-25 kg). String toward the lower end for more power and arm comfort; higher end for tighter control.

How long will this string last?

This is a durable string that should last most club players 25-40 hours of play or around 2-3 months of regular use before losing pop.