STRING PLAYERS FINGER TRAINING STRENGTHENER COORDINATOR, FROM UK!

HERE IS A GREAT PRACTICE AID FOR THOSE LEARNING OR TEACHING THE VIOLIN, VIOLA, CELLO, BASS, GUITAR, LUTE UKE ETC. BUT ALSO GREAT FOR FINGER PICKING, GUITAR ECT. THE DEVICE GOES OVER YOUR FINGERS AND YOU CAN USE IT WHENEVER YOU HAVE A SPARE MINUTE.