Kow Kant Kick is the brand of this kick stopper which has a long history in USA. We believe this is the most humane as well as the most effective device available for taming unruly cows during milking. Fits any size animal, fitting over the back, with tips into the flanks above the udder. Closing the clamp depresses the muscles that control kicking. Also useful during veterinary examinations, surgery, etc. If this doesn't work, you will just have to send her down the road!