KUMPOO Badminton String JS-67Recommended for players who seek both resilience and durability. A versatile string designed to suit a wide range of playing styles, the JS-67 features a 0.67mm gauge that balances elasticity and durability. It delivers a crisp rebound and comfortable hitting feel, ideal for players who want dependable all-around performance. Key Features: Core: Made with high-strength nylon and multi-filament fiber. Withstands tension up to 45 lbs, offering long-lasting durability and reliable performance. Side Layer: High molecular resin coating reduces friction and enhances shot clarity. Enhanced Weaving Process: Improves the core’s density and elasticity, ensuring greater stability and control. Performance Ratings (out of 10) Rebound elasticity: 8 Durability: 9 Playing sound: 8 Impact resistance: 9 Ball control: 8 Specifications: Material: A-core: High-strength nylon + multi-filament fiber, B-side: High-strength nylon + braided processing Color: White, Light Pink, Ice Blue, Fluorescent Yellow, Light Purple Size: 0.67mm × 10m