No. 7 Boost Color:Blue It's an evolution of a

It's an evolution of a favorite

It's a racket you can always trust

the racket's overall stability is improved by suppressing turbulence and improving striking precision

including super-breathable fabric

No. 7 Boost Color:Blue It's an evolution of aLi Nings No. 7 Boost is a premium staple for your prized racket. An ultra durable string, it promises super durability and a soft hitting feeling. The core of the string is made of high polymer and nylon filament. The outer part of the string is made of heat resistant and high intensity nylon. This string comes engineered with Li Nings Deep Re Dipping technology that helps improve durability and prevent loss of tension. The string is coated with