Li-Ning's 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-Ning's Deep-Re-Dipping technology that helps improve durability and prevent loss of tension. The string is coated with compound nylon that gives you a fantastic hitting feeling.
Player Level: Professional Control: 9/10 Durability: 10/10 Hitting Sound: 8/10 Repulsion Power: 7/10 Shock Absorption: 8/10 Core Material: High Polymer Nylon Multi-Filament Outer Material: Heat Resistant & High Intensity Nylon with a Compound Nylon Coating
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