Tecnifibre is adding some flavor to their most successful line of strings with the Black Code Tennis Strings in Fire Orange! This line of string is the brand's first geometric string offering durability and increased spin. Utilizing a co-polyester core, this string possesses excellent durability with greatly enhanced tension maintenance and feel. Black Code 16 features a pentagonal profile, helpful for generating more spin as the string bites into the ball better. The string uses Tecnifibre's exclusive ThermoCore technology which serves two primary purposes. String to string friction is greatly reduced, enhancing durability and further promoting spin and ease of stringing. The ThermoCore technology also gives the string greater flexibility for more power and a softer feel. An excellent choice from all areas of the court with enhanced spin, good power, and a softer feel. Also check out the line of Tour-inspired Tecnifibre racquets.   Construction: Extruded polyester monofilament Color: Fire Orange Gauge: 16G (1.28mm) | 17G (1.24 mm) Length: 40 ft (12.2 m)   Take a look at Tecnifibre's new powerful polyester Ice Code.