This wrist brace taught me how to properly hindge my wrist in my golf swing and lets me know if I am breaking down at the top of my back swing or bottom of my swing arch on through to my followthrough. If I feel the firm part of the brace touching the back of my left hand at any time from start to finish in any of my shots, I know that my leverage is nullified and my swing ( or arms ) is slowing down, which encourages the club head to pass my hands , which causes a massive leak in power and direction. In other words the breaking of the wrist causes the streight connection from the lead shoulder down the shaft to the clubhead to become 2 pieces instead of 1. I reccommend this tool for anyone that wants to improve their shot making and consistancy through out their entire bag, from driver to putter ! Remember this is not legal to use during competitive play, but if you practice with this device on and off the course you will be trained to play your best no matter the venue. I use this at home also without a club ! Fantastic results !