This fixed and direct training aid allows downward extensions or a high neck position, and thus increases muscle activity in the back. Entirely elastic, it can be used without any risk while lunging or riding. Very easy to use. Affixed to each side of the bit and on both sides of the horse at the girth, at the desired height. It can also be fixed on a roller or on the girth under the horse's belly.It is recommended to carefully adjust this aid (not too short), the aim is not to create tension with strength, but to find the limit beyond which the horse can't go. However, your horse must be able to move freely within this limit.