Product Features For lunging & flatwork Works with poll pressure Adjustable Description Used for lunging and ridden/flat work. It is a long elastic rope that runs from either between the legs, or the side of the girth, up to the bit, and then around the poll. The device is usually tightened by a clip that sits on the horses poll. The concept of how it works is fairly simple. If the horse raises its head and/or pushes its nose out, the device primarily puts downward pressure on the poll, with secondary pressure on the bit. If the Neck Stretcher is attached between the legs there is less pressure on the mouth and more on the poll. This should NOT be used for jumping as the horse is unable to stretch its neck out over the fence, or raise it for balance on the land.