Badminton Racket i.Nano Carbon ii.Weight :4U iii.Balance :285+/-3mm iv.Tension: 26-30LBS Badminton RacketSpecificationsModel: SNT3300Material: Nano CarbonBalance : 285±3mmWeight ... , such as carbon bicycle rims, carbon bicycle frames, badminton rackets, tennis rackets, taichi rackets etc.Our objective is to encourage low-carbon life, ... to serve you better in the future. manufacturer badminton rackets