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Tecnifibre 4S Reel 660' (Black)
Black is back with Tecnifibre 4S. Renamed in 2021 from Black Code 4S (same string, new name), Tecnifibre 4S is a square shaped polyester string designed to have maximum spin and 20% more power than Tecnifibre Pro Red Code. Even though this string does come with more power do not think it cannot last as it has proven to be 15% more durable then its counter part Tecnifibre Black Code, while having the same tension maintenance as Razor Code. All in all a vast improvement in the polyester game from Tecnifibre!
- Manufacturer #:  BTBS66
- Colors:  Black
- Composition:  High Quality Copolymer Monofilament/Polyester
- Gauge:  16g/(1.30mm), 17g/(1.25mm), 18g/(1.20mm)
- Length:  660'
- Type:  Polyester
- Misc.:  Square Shaped-4-Sides
- Sport:  Tennis