The AERONAUT 4000B badminton racket is built on the Aeronaut Technology Platform that has a unique air-stream channel integrated into the racket head. This reduces air resistance which helps to generate faster shuttlecock speeds. It’s suitable for players looking for the best control with little to no sacrifice in power.Li-Ning BOOST Series badminton rackets feature moderate balance point and a medium shaft making them suitable for well-rounded and experienced players.Strings not included. Please contact us for professional stringing services performed on a cutting edge Li-Ning electronic stringing machine using your choice of best-in-class Li-Ning badminton strings.