The numbers must be laser engraved into the surface. You should be able to feel the slight indentation of each character with your fingernail.
5 easy ways to check if your Yonex Racket is genuine or fake! how to check yonex racket serial number
Have a Yonex racket you are unsure about? Post a clear photo of the shaft code and cone code in the comments below (or on our forum), and the community will help you verify it within 24 hours. The numbers must be laser engraved into the surface
Here are some notable features of genuine Yonex products: * Laser Engraved Codes: Genuine Yonex rackets have laser engraved codes, errbadmintonrestring.my WARNING: Counterfeits – Yonex USA errbadmintonrestring.my WARNING: Counterfeits – Yonex USA