Vibration dampeners for tennis rackets; Vibration dampers for padel tennis rackets; Tennis ball throwing apparatus; Padel tennis ball-throwing apparatus; Tennis ball retrievers; Padel ball retrievers; Gymnastic and sporting articles; Balls for playing sports; Bags specially adapted for sports equipment; Tennis bags shaped to contain a racket; Bags for padel tennis rackets or bats; Cases for tennis balls; Boxes for padel balls; Tapes with weights for balancing tennis racquets; Tapes with weigh...