A braid core tennis string with outstanding tension maintainability! Using high tenacity multifilaments to be the center core, through braid process, make the core become powerful & durable. Adding a center core coating that could obviously increase the tension maintianability. The outer is using pwerful monofilaments to twist on the outsice that could provide nicte hitting feeling and performance. The final coating is completed by Nano elastic resin. Material introduction: - Core: High tenacity Multifilament in braid contstruction - Outer: Powerful Monofilaments - Coating: durable nano Coating Specifications: - Braid center core to provide very good tension maintainablility - Construction strong, easy stringing and reduce string moving -Nice hitting feeling and ability   Recommended Tension: ...