Tecnifibre adds flavor to their most successful line of strings with the Black Code tennis strings in fire orange. This line of strings is the brand's first geometric string offering durability and increased rotation. Using a co-polyester core, this rope has excellent durability with significantly improved tension retention and feel. Black Code 16 features a pentagonal profile, useful for generating more spin when the string bites better into the ball. The rope uses Tecnifibre exclusive ThermoCore technology which serves two main purposes. The friction between strings is significantly reduced, improving durability and further promoting spin and ease of stringing. ThermoCore technology also gives the rope greater flexibility for more power and a softer feel. A great choice in all areas of the field with improved rotation, good power and a softer feel. Discover also the range of Tecnifibre Tour-inspired rackets.