1)Badminton racket stringing machine 2)Free tools. 3)Warranty:One year ... l Suitable for any racket (tennis racket, badminton racket, super wide racket, super long racket, pelota racket and abnormality racket) string. l Special designed racket bracket combination, streamline tool ... error. l The left and right bracket arms hold racket together, to avoid racket deforming l Full set tool available.